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The ornamental design for a telephone key expansion unit, as shown and described. |
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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 BETEILIGUNGSVERWALTUNG GMBH & CO KG | Telephone intercom system |
| D789319, | Feb 27 2015 | UNIFY BETEILIGUNGSVERWALTUNG GMBH & CO KG | Key module |
| D789320, | Feb 27 2015 | UNIFY BETEILIGUNGSVERWALTUNG 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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