Patent
   D311401
Priority
Jun 15 1988
Filed
Aug 25 1989
Issued
Oct 16 1990
Expiry
Oct 16 2004
Assg.orig
Entity
unknown
6
11
n/a
The ornamental design for an extension attachment for a telephone earpiece, as shown and described.

FIG. 1 is a front, top and right side perspective view of an extension attachment for a telephone earpiece showing our new design;

FIGS. 2 and 3 are respectively front and rear elevational views thereof;

FIG. 4 is a right side elevational view thereof, the side opposite being a mirror image thereof; and

FIGS. 5 and 6 are respectively top and bottom plan views thereof.

Catey, Harry, Hesla, Erling C.

Patent Priority Assignee Title
D386765, Mar 11 1996 Ear cushion for telephones
D396473, Nov 03 1996 Ear cushion for telephones
D396725, Nov 03 1996 Ear cushion for telephones
D397340, Nov 03 1996 Ear cushion for telephones
D397341, Nov 03 1996 Ear cushion for telephones
D466890, Nov 27 2001 Vertu Corporation Limited Earpiece part for a handset
Patent Priority Assignee Title
1586140,
2468721,
4803720, Sep 22 1986 International Business Machines Corporation Dual plane cross point switch architecture for a micro-PBX
142133,
181667,
183019,
185520,
216802,
241350,
D305235, Jun 12 1987 Telephone receiver cushion
31187,
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Apr 22 1991HESLA, ERLING C EVERETT ASSISTIVE RESOURCES COMPANY A CORP OF WAASSIGNMENT OF ASSIGNORS INTEREST 0056950911 pdf
Apr 24 1991CATEY, HARRYEVERETT ASSISTIVE RESOURCES COMPANY A CORP OF WAASSIGNMENT OF ASSIGNORS INTEREST 0056950911 pdf
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