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Patent
   D328300
Priority
May 25 1990
Filed
Oct 26 1990
Issued
Jul 28 1992
Expiry
Jul 28 2006
Inventors
Suzuki, Ma…
Assg.orig
NITSUKO CO…
Assg.curr
Nitsuko Co…
Entity
unknown
Referenced by
3
References
11
Maint.:
n/a
The ornamental design for an extension ringing console apparatus for telephone sets, as shown and described.

FIG. 1 is a front, top and right side perspective view of an extension ringing console for telephone sets;

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

FIGS. 4 and 5 are left and right side elevational views thereof; and,

FIGS. 6 and 7 are respectively top and bottom plan views thereof.
INVENTORS:

Suzuki, Masanori, Hattori, Akiyoshi

THIS PATENT IS REFERENCED BY THESE PATENTS:
Patent Priority Assignee Title
D375100, Apr 21 1995 Nitsuko Corporation Extension ringing console apparatus for a telephone set
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
THIS PATENT REFERENCES THESE PATENTS:
Patent Priority Assignee Title
212230,
232563,
D266086, Sep 24 1979 TIE/Communications, Inc. Direct station selection console
D267173, Dec 29 1980 AG COMMUNICATION SYSTEMS CORPORATION, 2500 W UTOPIA RD , PHOENIX, AZ 85027, A DE CORP Telephone switchboard housing
D271763, Jan 21 1980 TIE/Communications, Inc. Direct station selection console
D272439, Jan 23 1981 International Business Machines Corporation PABX Console
D277477, Mar 26 1982 Siemens Corporation Telephone busy lamp field console
D282745, Jul 18 1983 TIE/Communications, Inc. Direct station selection console
D294499, Apr 08 1986 Nitsuko Limited Inter-call device for telephone sets
D300028, Dec 17 1986 Nitsuko Corporation Intercall console module device for a telephone set
D307588, May 23 1988 AG COMMUNICATION SYSTEMS CORPORATION, 2500 W UTOPIA RD , PHOENIX, AZ 85027, A DE CORP Key unit housing for a telephone call processor
ASSIGNMENT RECORDS    Assignment records on the USPTO
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Oct 19 1990HATTORI, AKIYOSHINITSUKO CORPORATION, A CORP OF JAPANASSIGNMENT OF ASSIGNORS INTEREST 0054930330 pdf
Oct 19 1990SUZUKI, MASANORINITSUKO CORPORATION, A CORP OF JAPANASSIGNMENT OF ASSIGNORS INTEREST 0054930330 pdf
Oct 26 1990Nitsuko Corporation(assignment on the face of the patent)
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