Patent
   D277848
Priority
Jun 01 1982
Filed
Jun 01 1982
Issued
Mar 05 1985
Expiry
Mar 05 1999
Assg.orig
Entity
unknown
2
5
n/a
The ornamental design for a protective cover for a hybrid circuit switching device, as shown and described.

FIG. 1 is a perspective view of a protective cover for a hybrid circuit switching device, showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a left side elevational view thereof; and

FIG. 5 is a right side elevational view thereof.

Koppensteiner, James V., Len, George

Patent Priority Assignee Title
D311383, Apr 14 1987 Aktiebolaget Volvo Protective cover for marine instruments on a control console
D559204, Feb 17 2006 UNIVERSAL ATLANTIC SYSTEMS, LLC Wall-mounted switch guard
Patent Priority Assignee Title
3778577,
4225748, Jun 02 1977 Switching device, especially for electronic contactless switches, e.g. proximity switches
136295,
138405,
199026,
/////
Executed onAssignorAssigneeConveyanceFrameReelDoc
May 24 1982GTE Automatic Electric Laboratories IncorporatedGTE AUTOMATIC ELECTRIC INCORPORATED, A CORP OF DE ASSIGNMENT OF ASSIGNORS INTEREST 0040810217 pdf
May 25 1982KOPPENSTEINER, JAMES V GTE Automatic Electric IncorporatedASSIGNMENT OF ASSIGNORS INTEREST 0040170551 pdf
May 25 1982LEN, GEORGEGTE Automatic Electric IncorporatedASSIGNMENT OF ASSIGNORS INTEREST 0040170551 pdf
Jun 01 1982GTE Automatic Electric Incorporated(assignment on the face of the patent)
Dec 28 1988GTE Communication Systems CorporationAG COMMUNICATION SYSTEMS CORPORATION, 2500 W UTOPIA RD , PHOENIX, AZ 85027, A DE CORP ASSIGNMENT OF ASSIGNORS INTEREST 0050600501 pdf
n/a
Date Maintenance Fee Events


n/a
Date Maintenance Schedule