G.B. BUILDING SYSTEMS CORPORATION

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
 
 
G09F DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS 233
 
 
 
E21B EARTH OR ROCK DRILLING 186
 
 
 
F21V FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR 191

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
D441475 Housing of emergency lighting fixtureJun 30, 98May 01, 01[2605]
6,082,031 Canopy mounting device for exit signJul 29, 98Jul 04, 00[G09F]
D426334 Emergency lighting fixtureJun 30, 98Jun 06, 00[2605]
6,039,116 Oil and gas production with periodic gas injectionMay 05, 98Mar 21, 00[E21B]
6,019,477 Emergency lighting deviceJul 03, 97Feb 01, 00[F21V]
D419708 Housing for an emergency lighting deviceMay 20, 98Jan 25, 00[2605]
D406863 Panel for an exit sign having a curved faceOct 31, 96Mar 16, 99[2003]
D406279 Combination emergency lighting device and exit signJul 03, 97Mar 02, 99[2002]
D402316 Sign having a curved faceOct 31, 96Dec 08, 98[2002]
D400995 Emergency lighting fixtureJul 03, 97Nov 10, 98[2605]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6,050,013 Mounting device for exit sign coversExpiredJul 29, 98Apr 18, 00[G09F]
6,045,242 Lighting fixtureExpiredJun 30, 98Apr 04, 00[F21V]
5,823,378 Breather vent for electrical enclosureExpiredMar 27, 97Oct 20, 98[B65D]
5,685,098 Snap tab arrangement for covering and uncovering a sign apparatus directional indicatorExpiredNov 14, 95Nov 11, 97[G09F]
5,655,830 Lighting deviceExpiredApr 17, 95Aug 12, 97[G09F]
5,539,623 Lighting device used in an exit signExpiredOct 12, 94Jul 23, 96[F21V]
5,526,236 Lighting device used in an exit signExpiredJul 27, 94Jun 11, 96[G09F]
5,459,955 Lighting device used in an exit signExpiredDec 01, 93Oct 24, 95[F21V]
5,416,679 Mounting base assembly for a lighting device used in an exit signExpiredDec 01, 93May 16, 95[F21V]
D357997 Fixed lens emergency lighting unitExpiredNov 17, 93May 02, 95[]
5,410,453 Lighting device used in an exit signExpiredDec 01, 93Apr 25, 95[F21V]
D344983 Exit signExpiredMay 14, 92Mar 08, 94[]
D344293 Insert for exit signsExpiredMay 14, 92Feb 15, 94[]
4,885,474 Connector assembly for plug-in energization and battery activation of an associated electrical apparatusExpiredMar 15, 89Dec 05, 89[H02J]
4,628,213 Electronic circuits for driving bells or electromagnetic devicesExpiredAug 09, 85Dec 09, 86[G08B, H02J]
4,571,586 Alarm console controlsExpiredJun 06, 83Feb 18, 86[H04Q, G08B]
4,513,284 Console priority controlExpiredMar 24, 83Apr 23, 85[H04Q]
4,335,418 Electronic interrupterExpiredOct 27, 80Jun 15, 82[H01H]
4,280,123 Multitone signaling deviceExpiredMay 05, 80Jul 21, 81[G08B]
4,213,012 Discriminating means for telephone circuitsExpiredNov 03, 78Jul 15, 80[H04M]

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