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Patent
D311401
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Priority
Jun 15 1988
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Filed
Aug 25 1989
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Issued
Oct 16 1990
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Expiry
Oct 16 2004
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Assg.orig
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Entity
unknown
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6
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11
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n/a
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The ornamental design for an extension attachment for a telephone earpiece, as shown and described.
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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, |
|
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2468721, |
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4803720, |
Sep 22 1986 |
International Business Machines Corporation |
Dual plane cross point switch architecture for a micro-PBX |
142133, |
|
|
|
181667, |
|
|
|
183019, |
|
|
|
185520, |
|
|
|
216802, |
|
|
|
241350, |
|
|
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D305235, |
Jun 12 1987 |
|
Telephone receiver cushion |
31187, |
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Date |
Maintenance Fee Events |
n/a
Date |
Maintenance Schedule |
n/a