Patent US3209140A successfully refreshed from Google Patents.
US3209140A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Luminaire
Assignee: Westinghouse Electric Corp
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Filing: 1963-01-14
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Granted: 1965-09-28
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Expires: 1983-01-14
Abstract
No abstract record available.
Inventors
- 👤 Nieder-Westermann Winfried
- 👤 Edmund L Izzi
- 👤 Moro John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:40
CPC Classifications
F; F21; F21V; F21V21/00; F21V21/005; F21S; F21S4/00; F21S4/20; F21Y; F21Y2103/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
IN A LUMINAIRE, THE COMBINATION COMPRISING AN ELONGATED HOUSING WITH AN OPEN BOTTOM, LAMPHOLDER SUPPORTS MOUNTED ADJACENT OPPOSITE ENDS OF THE HOUSING, REFLECTOR MEANS SECURED TO SAID HOUSING AND COVERING THE OPEN BOTTOM THEREOF SO AS TO ENCLOSE A BALLAST AND WIRING SPACE BETWEEN THE REFLECTOR AND HOUSING, A GENERALLY U-SHAPED LIGHT-TRANSMITTING SHIELD HINGEDLY AND RELEASABLY MOUNTED ON SAID HOUSING, SAID SHIELD HAVING LIGHT-TRANSMITTING END WALLS INTEGRAL THEREWITH, SAID END WALLS HAVING A CUT-OUT PORTION, THE EDGES OF SAID CUT-OUT PORTION DEFINING OPPOSING ALIGNED STEPPED UPPER AND LOWER SHOULDERS, AT LEAST ONE END COVER ENGAGING ONE OF SAID END WALLS, SAID END COVER HAVING HOOK MEANS, SAID HOOK MEANS BEING OF SUFFICIENT DIMENSION TO BE INSERTABLE WITHIN SAID CUT-OUT PORTION ABOVE SAID UPPER SHOULDER AND ENGAGEABLE WITH SAID END WALL WHEN RESTING ON SAID LOWER SHOULDER.
Claim 2
Dependent Claim
136 words
IN A LUMINAIRE, THE COMBINATION COMPRISING AN ELONGATED HOUSING WITH AN OPEN BOTTOM, LAMPHOLDER SUPPORTS MOUNTED ADJACENT OPPOSITE ENDS OF THE HOUSING, REFLECTOR MEANS SECURED TO SAID HOUSING AND COVERING THE OPEN BOTTOM THEREOF SO AS TO ENCLOSE A BALLAST AND WIRING SPACE BETWEEN THE REFLECTOR AND HOUSING, A GENERALLY U-SHAPED LIGHT-TRANSMITTING SHIELD HINGEDLY AND RELEASABLY MOUNTED ON SAID HOUSING, SAID SHIELD HAVING LIGHT-TRANSMITTING END WALLS INTEGRAL THEREWITH, SAID END WALLS HAVING A CUT-OUT PORTION, THE EDGES OF SAID CUT-OUT PORTION DEFINING OPPOSING ALIGNED STEPPED UPPER AND LOWER SHOULDERS, AT LEAST ONE END COVER ENGAGING ONE OF SAID END WALLS, SAID END COVER HAVING HOOK MEANS, SAID HOOK MEANS BEING OF SUFFICIENT DIMENSION TO BE INSERTABLE WITHIN SAID CUT-OUT PORTION ABOVE SAID UPPER SHOULDER AND ENGAGEABLE WITH SAID END WALL WHEN RESTING ON SAID LOWER SHOULDER.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |