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The ornamental design for a telephone key expansion unit, as shown and described. |
FIG. 1 is a perspective view of the telephone key expansion unit of the present invention;
FIG. 2 is a top view;
FIG. 3 is a front elevational view;
FIG. 4 is a right-side elevational view;
FIG. 5 is a left-side elevational view;
FIG. 6 is a rear elevational view; and,
FIG. 7 is a bottom view.
The broken lines showing of a telephone in FIG. 1 is for illustrative purposes only and forms no part of the claimed design.
McKinnon, Wayne E., Bryant, David E., Kingsbury, Mary E., Elkins, Erich C., Erwin, Doug A., McRight, William C.
Patent | Priority | Assignee | Title |
D388102, | Apr 16 1996 | Kabushiki Kaisha Toshiba | Function extended unit for a telephone |
D389156, | Apr 16 1996 | Kabushiki Kaisha Toshiba | Extension calling unit for telephone |
D413332, | Apr 23 1997 | Alcatel Business Systems | Supplementary box for telephone |
D455727, | Oct 27 2000 | UNIFY GMBH & CO KG | Telephone station |
D470136, | Mar 21 2001 | TELEFONAKTIEBOLAGET LM ERICSSON PUBL | Desk stand |
D472236, | Jan 04 2002 | AVAYA Inc | Telephone |
D482679, | Oct 27 2000 | UNIFY GMBH & CO KG | Detachable auxiliary device having programmable keys |
D483750, | Nov 25 2002 | Wilmington Trust FSB | Telephone dialing accessory |
D591275, | Dec 18 2006 | Kabushiki Kaisha Toshiba | Telephone line connection transponder |
D591276, | Dec 18 2006 | Kabushiki Kaisha Toshiba | Telephone line connection transponder |
D609212, | Nov 23 2007 | AVAYA LLC | Telephone set |
D634295, | Nov 23 2007 | AVAYA LLC | Key extension module for telephone |
D723501, | Jul 19 2013 | SAMSUNG ELECTRONICS CO , LTD | Add on module for telephone |
D739373, | Oct 05 2012 | UNIFY PATENTE GMBH & CO KG | Telephone intercom system |
D789319, | Feb 27 2015 | Unify GmbH & Co. KG | Key module |
D789320, | Feb 27 2015 | Unify GmbH & Co. KG | Key module for telephone |
D853346, | Aug 16 2017 | Samsung Electronics Co., Ltd. | Add-on module for a telephone |
D970462, | Jul 02 2020 | HEWLETT-PACKARD DEVELOPMENT COMPANY, L P | Desk phone expansion module |
D986205, | Jul 02 2020 | HEWLETT-PACKARD DEVELOPMENT COMPANY, L P | Desk phone expansion module |
Patent | Priority | Assignee | Title |
4790007, | Jan 25 1986 | TELENORMA TELEFONBAU UND NORMALZEIT GMBH, A GERMAN CORP | Telephone instrument |
5373556, | Dec 28 1992 | Voice Signals LLC | Quick connect housing coupling and method |
D306027, | Sep 22 1988 | Nortel Networks Limited | Add-on access module for a telephone set |
D306859, | Jan 06 1989 | Nortel Networks Limited | Add-on module for a homogeneous unit telephone set |
D311918, | Dec 06 1988 | Matra Communication | Telephone set |
D312461, | Dec 24 1988 | Kabushiki Kaisha Toshiba | Inter-call device for telephone sets |
D317920, | Jul 16 1990 | EON COMMUNICATIONS CORPORATION | Console for a telephone system |
D319235, | Feb 08 1990 | The Polyfabrics (HK) Ltd. | Telephone set |
D340057, | Jun 22 1992 | ROLM Company | Add-on console for a telephone set |
D346385, | Jun 22 1992 | Siemens Aktiengesellschaft | Telephone set |
Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Jun 02 1995 | Siemens Rolm Communications Inc. | (assignment on the face of the patent) | / | |||
Oct 23 1995 | ELKINS, ERICH C | SIEMENS ROLM COMMUNICATIONS INC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 007739 | /0200 | |
Nov 02 1995 | MCKINNON, WAYNE E | SIEMENS ROLM COMMUNICATIONS INC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 007739 | /0200 | |
Nov 02 1995 | BRYANT, DAVID E | SIEMENS ROLM COMMUNICATIONS INC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 007739 | /0200 | |
Nov 02 1995 | ERWIN, DOUG A | SIEMENS ROLM COMMUNICATIONS INC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 007739 | /0200 | |
Nov 02 1995 | MCRIGHT, WILLIAM C | SIEMENS ROLM COMMUNICATIONS INC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 007739 | /0200 | |
Nov 06 1995 | KINGSBURY, MARY E | SIEMENS ROLM COMMUNICATIONS INC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 007739 | /0200 |
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