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			 The ornamental design for a "key matrix", as shown and described.  | 
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FIG. 1 is a front, top and right side perspective view of a key matrix showing our new design;
FIG. 2 is a top elevational view thereof;
FIG. 3 is a front plan view thereof;
FIG. 4 is a right side view thereof;
FIG. 5 is a left side view thereof; and,
FIG. 6 is a rear plan view thereof.
Nuovo, Frank, Curtis, Alastair
| Patent | Priority | Assignee | Title | 
| D438534, | Oct 25 2000 | Alphanumeric keypad | |
| D447132, | Dec 19 2000 | Alphanumeric keypad | |
| D449595, | Dec 18 2000 | Mobigence, Inc. | Keypad | 
| D449596, | Dec 18 2000 | Mobigence, Inc. | Keypad | 
| D449830, | Aug 23 2000 | Microsoft Mobile Oy | Display and key array for a handset | 
| D450316, | Aug 23 2000 | Microsoft Mobile Oy | Front cover for a handset | 
| D450671, | Aug 23 2000 | Microsoft Mobile Oy | Handset | 
| D450689, | Aug 23 2000 | Microsoft Mobile Oy | Keypad for a handset | 
| D451092, | Dec 18 2000 | Mobigence, Inc. | Keypad | 
| D451502, | Aug 23 2000 | Microsoft Mobile Oy | Key matrix for a handset | 
| D451503, | Aug 23 2000 | Microsoft Mobile Oy | Display and key array for a handset | 
| D451914, | Aug 23 2000 | Microsoft Mobile Oy | Front cover for a handset | 
| D452235, | Aug 23 2000 | Microsoft Mobile Oy | Front cover for a handset | 
| D453928, | Aug 23 2000 | Microsoft Mobile Oy | Keypad for a handset | 
| D454341, | Dec 29 2000 | Microsoft Mobile Oy | Keypad for a handset | 
| D454549, | Aug 23 2000 | Microsoft Mobile Oy | Handset | 
| D454865, | Aug 23 2000 | Microsoft Mobile Oy | Key matrix for a handset | 
| D455736, | Aug 23 2000 | Microsoft Mobile Oy | Keypad for a handset | 
| D455739, | Aug 23 2000 | Microsoft Mobile Oy | Front cover for a handset | 
| D456375, | Dec 29 2000 | Microsoft Mobile Oy | Handset | 
| D456376, | Aug 23 2000 | Microsoft Mobile Oy | Handset | 
| D457519, | Aug 23 2000 | Microsoft Mobile Oy | Key matrix for a handset | 
| D457879, | Aug 23 2000 | Microsoft Mobile Oy | Display and key array for a handset | 
| D460262, | Feb 07 2000 | BRIVO SYSTEMS LLC | Control panel | 
| D460621, | Feb 07 2000 | BRIVO SYSTEMS LLC | Control panel | 
| D492675, | Jul 30 2002 | Motorola Mobility LLC | Interface for communication devices or similar articles | 
| D496919, | Jun 04 2003 | Microsoft Mobile Oy | Handset | 
| D501004, | Jun 04 2003 | Microsoft Mobile Oy | Front cover for a handset | 
| D507561, | Jun 04 2003 | Microsoft Mobile Oy | Key button arrangement for a handset | 
| D507564, | Jun 04 2003 | Microsoft Mobile Oy | Back cover for a handset | 
| D597506, | Mar 08 2007 | Motorola Mobility LLC | Housing for a communication device | 
| D634740, | Mar 31 2010 | BlackBerry Limited | Keypad | 
| D641743, | Mar 31 2010 | BlackBerry Limited | Keypad | 
| D641744, | Mar 31 2010 | BlackBerry Limited | Keypad | 
| D641745, | Mar 31 2010 | BlackBerry Limited | Keypad | 
| D771634, | Dec 12 2014 | TACTUS TECHNOLOGY, INC | Crescent button overlay for virtual keyboard | 
| D777728, | Dec 01 2014 | TACTUS TECHNOLOGY, INC | Button overlay for a virtual keyboard | 
| D785602, | Dec 18 2015 | OPENTV, INC. | Screen protrusions | 
| D798841, | Dec 18 2015 | OPENTV, INC. | Remote control | 
| D937504, | May 29 2017 | Canada Litter Inc. | Shovel | 
| Patent | Priority | Assignee | Title | 
| 3123676, | |||
| D246103, | Aug 12 1976 | Motorola, Inc. | Vehicular telephone apparatus or similar article | 
| D289896, | Dec 14 1984 | NOKIA MOBILE PHONES U K LIMITED | Pocket telephone | 
| D299719, | Sep 22 1986 | NOKIA MOBILE PHONES U K LIMITED | Handset radio telephone | 
| D302423, | Sep 22 1986 | NOKIA MOBILE PHONES U K LIMITED | Portable radio/telephone instrument | 
| D305119, | Apr 19 1988 | SAMSUNG ELECTRONICS CO , LTD | Combination wireless handset telephone and speaker stand therefor | 
| D311536, | Jun 21 1988 | Behren K., Reeves | Transceiver | 
| D316261, | Jun 16 1989 | U S PHILIPS CORPORATION | Handset telephone | 
| D320984, | Oct 16 1989 | Sumitomo Wiring Systems, Ltd. | Radiotelephone | 
| D325576, | Apr 12 1990 | Nokia Mobile Phones Ltd. | Hand telephone | 
| D325577, | Apr 12 1990 | Nokia Mobile Phones Ltd. | Portable handset telephone | 
| D327060, | Jan 07 1991 | GENERAL INSTRUMENT CORPORATION GIC-4 | Combined remote control and cordless telephone handset and its base with an antenna | 
| D334926, | May 02 1991 | NOKIA MOBILE PHONES U K LIMITED | Portable telephone | 
| D336650, | Dec 24 1990 | Motorola, Inc. | Keypad and speaker grille portion of a portable two-way radio | 
| D339338, | Sep 27 1991 | Nokia Mobile Phones Ltd. | Hand telephone | 
| D341138, | Oct 11 1991 | NOKIA MOBILE PHONES U K LIMITED | Portable telephone | 
| D345734, | May 11 1992 | Nokia Mobile Phones, Ltd. | Hand telephone | 
| D349112, | Jun 12 1992 | Nokia Mobile Phones Ltd. | Hand-held telephone | 
| D352708, | Aug 02 1990 | Nokia Mobile Phones Ltd. | Hand telephone | 
| D353807, | Jun 10 1993 | Nokia Mobile Phones Ltd. | Portable telephone | 
| D353808, | Mar 23 1993 | NEC Corporation; NEC SAITAMA, LTD | Portable radio phone | 
| D353809, | Nov 08 1993 | Nokia Mobile Phones Ltd. | Portable telephone | 
| D354284, | Jun 10 1993 | Nokia Mobile Phones Ltd. | Portable telephone | 
| D356561, | Sep 30 1993 | Nokia Mobile Phones Ltd. | Portable telephone | 
| D356562, | Mar 01 1994 | Nokia Mobile Phones Ltd. | Portable telephone | 
| D356563, | Sep 30 1993 | Nokia Mobile Phones Ltd. | Portable telephone | 
| D359283, | Sep 30 1993 | Nokia Mobile Phones Ltd. | Cradle and mobile telephone handset | 
| D361328, | Mar 01 1994 | Nokia Mobile Phones Ltd. | Portable telephone | 
| D361762, | Mar 01 1994 | Nokia Mobile Phones Ltd. | Portable telephone | 
| D364620, | Jun 02 1994 | Nokia Mobile Phones Ltd. | Telephone handset | 
| D371553, | Mar 10 1995 | AT&T MOBILITY II LLC | Telephone handset | 
| D374006, | Oct 20 1994 | Nokia Mobile Phones Ltd. | Mobile telephone | 
| D374007, | Oct 20 1994 | Nokia Mobile Phones Ltd. | Mobile telephone | 
| D375738, | Jan 04 1995 | Lucent Technologies, INC | Portable telephone handset | 
| D383130, | Aug 30 1994 | Ericsson Business Mobile Networks B.V. | Telephone | 
| D383134, | Mar 16 1995 | International Business Machine Corporation; International Business Machines Corp | Remote control device | 
| D384950, | Nov 08 1995 | Nokia Mobile Phones LTD | Handset | 
| D385554, | Feb 22 1996 | Nokia Mobile Phones Limited | Mobile phone housing | 
| D385874, | Mar 13 1996 | Motorola, Inc | Portable telephone | 
| D385876, | Mar 22 1996 | Nokia Mobile Phones Limited | Telephone | 
| D385887, | Mar 22 1996 | Nokia Mobile Phones Limited | Cover for a telephone | 
| D386188, | Nov 08 1995 | Nokia Mobile Phones LTD | Cover for a telephone | 
| D386494, | Oct 17 1995 | Motorola, Inc. | Faceplate for a portable telephone | 
| D390550, | Apr 25 1997 | Benq Corporation | Keyboard | 
| D392968, | Feb 23 1996 | Nokia Mobile Phones Limited | Communicator | 
| D396232, | Jun 18 1997 | Thomson Consumer Electronics, Inc. | Remote control transmitter | 
| D400203, | Oct 03 1996 | Nokia Mobile Phones Limited | Handset | 
| D402653, | Aug 21 1997 | Nokia Mobile Phones Limited | Telephone handset | 
| D402664, | Dec 09 1997 | Nokia Mobile Phones Limited | Key and display layout for a telephone handset | 
| D405445, | Nov 07 1997 | Nokia Mobile Phones Limited | Telephone handset | 
| D405783, | Aug 21 1997 | Nokia Mobile Phones Limited | Display region for a portable electronic apparatus | 
| D413896, | May 29 1998 | Nokia Mobile Phones Limited | Key array for a handset | 
| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc | 
| Feb 12 1999 | Nokia Mobile Phones Limited | (assignment on the face of the patent) | / | |||
| Mar 10 1999 | CURTIS, ALASTAIR | Nokia Mobile Phones Limited | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 009880 | /0370 | |
| Mar 10 1999 | NUOVO, FRANK | Nokia Mobile Phones Limited | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 009880 | /0370 | 
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