Patent US3398291A successfully refreshed from Google Patents.
US3398291A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Luminaire with heat shield and support means for the photoelectric control device
Assignee: General Electric Co
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Filing: 1966-03-24
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Granted: 1968-08-20
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Expires: 1986-03-24
Abstract
No abstract record available.
Inventors
- 👤 Robert W Zerfoss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 04:05
CPC Classifications
F; F21; F21S; F21S8/00; F21S8/08; F21S8/085; F21S8/086; F21V; F21V23/00; F21V23/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
IN A LUMINAIRE, HOUSING MEANS HAVING A WALL PORTION FORMED WITH A WINDOWN OPENING, OPERATING MEANS WITHIN SAID HOUSING MEANS WHICH GENERATE ELEVATED TEMPERATURES DURING OPERATION, A PHOTOELECTRIC CONTROL DEVICE IN SAID HOUSING MEANS FOR CONTROLLING THE OPERATION OF THE LUMINAIRE IN ACCORDANCE WITH LIGHT RECEIVED THROUGH SAID WINDOW OPENING AND BEING SUBJECT TO ADVERSE EFFECTS FROM ELEVATED TEMPERATURES, AND COMBINED HEAT SHIELD AND SUPPORT MEANS INTERPOSED BETWEEN SAID HEAT GENERATING OPERATING MEANS AND SAID PHOTOELECTRIC CONTROL DEVICE FOR PROTECTING THE LATTER FROM THE ELEVATED TEMPERATURES GENERATED BY SAID OPERATING MEANS AND FOR MOUNTING THE SAME IN OPERATIVE POSITION RELATIVE TO SAID WINDOW OPENING.
Claim 2
Dependent Claim
104 words
IN A LUMINAIRE, HOUSING MEANS HAVING A WALL PORTION FORMED WITH A WINDOWN OPENING, OPERATING MEANS WITHIN SAID HOUSING MEANS WHICH GENERATE ELEVATED TEMPERATURES DURING OPERATION, A PHOTOELECTRIC CONTROL DEVICE IN SAID HOUSING MEANS FOR CONTROLLING THE OPERATION OF THE LUMINAIRE IN ACCORDANCE WITH LIGHT RECEIVED THROUGH SAID WINDOW OPENING AND BEING SUBJECT TO ADVERSE EFFECTS FROM ELEVATED TEMPERATURES, AND COMBINED HEAT SHIELD AND SUPPORT MEANS INTERPOSED BETWEEN SAID HEAT GENERATING OPERATING MEANS AND SAID PHOTOELECTRIC CONTROL DEVICE FOR PROTECTING THE LATTER FROM THE ELEVATED TEMPERATURES GENERATED BY SAID OPERATING MEANS AND FOR MOUNTING THE SAME IN OPERATIVE POSITION RELATIVE TO SAID WINDOW OPENING.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-20 | 1972-02-19 | 1972-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-20 | 1976-02-19 | 1976-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-20 | 1980-02-19 | 1980-08-20 | $7700.00 | Window Closed / Lapsed |