Patent US3265883A successfully refreshed from Google Patents.
US3265883A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Luminaire
Assignee: General Electric Co
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Filing: 1964-04-30
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Granted: 1966-08-09
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Expires: 1984-04-30
Abstract
No abstract record available.
Inventors
- 👤 Joseph A Tolbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:13
CPC Classifications
F; F21; F21V; F21V7/00; F21V7/04; F21S; F21S8/00; F21S8/08; F21S8/085; F21S8/086; F21W; F21W2131/00; F21W2131/10; F21W2131/103
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
195 words
A LUMINAIRE ADATPED TO BE MOUNTED ADJACENT A ROADWAY COMPRISING AN ELONGATED INVERTED BOWL-SHAPED REFLECTOR HAVING A RIM EXTENDING IN A PLANE AND HAVING REFLECTING SURFACES ON OPPOSITE SIDES WITH A CONTOUR WHICH IS PARABOLOIDAL IN VERTICAL AND HORIZONTAL CROSS-SECTION, A LAMP COMPRISING AN ELONGATED BULB HAVING A BASE MOUNTED AT ONE END OF SAID REFLECTOR AND EXTENDING THEREIN TOWARD THE OTHER END THEREOF SUBSTANTIALLY ALONG SAID PLANE, SAID LAMP EMITTING A PRINCIPAL AMOUNT OF LIGHT FROM ITS SIDE PORTIONS TOWARD SAID REFLECTING SIDE SURFACES OF SAID REFLECTOR, AND AN ADDITIONAL AMOUNT OF LIGHT FROM ITS END PORTION GENERALLY TOWARD SAID OTHER END OF SAID REFLECTOR, THE LIGHT SOURCE OF SAID LAMP BEING SO POSITIONED WITH RESPECT TO SAID REFLECTING SIDE SURFACES THAT SAID PRINCIPAL AMOUNT OF LIGHT FROM SAID LAMP IS REFLECTED THEREFROM DOWNWARDLY AND OUTWARDLY TOWARD THE CENTER OF THE ROADWAY IN MAIN BEAMS ON OPPOSITE SIDES OF THE LUMINAIRE, SAID REFLECTOR BEING FORMED WITH INWARDLY CONVEX REFLECTING PORTIONS ON ITS INTERIOR SURFACE BETWEEN SAID LAMP END PORTION AND SAID OTHER END OF SAID REFLECTOR AND IN THE PATH OF SAID ADDITIONAL AMOUNT OF LIGHT FOR REFLECTING THE SAME INTO SAID MAIN BEAMS.
Claim 2
Dependent Claim
195 words
A LUMINAIRE ADATPED TO BE MOUNTED ADJACENT A ROADWAY COMPRISING AN ELONGATED INVERTED BOWL-SHAPED REFLECTOR HAVING A RIM EXTENDING IN A PLANE AND HAVING REFLECTING SURFACES ON OPPOSITE SIDES WITH A CONTOUR WHICH IS PARABOLOIDAL IN VERTICAL AND HORIZONTAL CROSS-SECTION, A LAMP COMPRISING AN ELONGATED BULB HAVING A BASE MOUNTED AT ONE END OF SAID REFLECTOR AND EXTENDING THEREIN TOWARD THE OTHER END THEREOF SUBSTANTIALLY ALONG SAID PLANE, SAID LAMP EMITTING A PRINCIPAL AMOUNT OF LIGHT FROM ITS SIDE PORTIONS TOWARD SAID REFLECTING SIDE SURFACES OF SAID REFLECTOR, AND AN ADDITIONAL AMOUNT OF LIGHT FROM ITS END PORTION GENERALLY TOWARD SAID OTHER END OF SAID REFLECTOR, THE LIGHT SOURCE OF SAID LAMP BEING SO POSITIONED WITH RESPECT TO SAID REFLECTING SIDE SURFACES THAT SAID PRINCIPAL AMOUNT OF LIGHT FROM SAID LAMP IS REFLECTED THEREFROM DOWNWARDLY AND OUTWARDLY TOWARD THE CENTER OF THE ROADWAY IN MAIN BEAMS ON OPPOSITE SIDES OF THE LUMINAIRE, SAID REFLECTOR BEING FORMED WITH INWARDLY CONVEX REFLECTING PORTIONS ON ITS INTERIOR SURFACE BETWEEN SAID LAMP END PORTION AND SAID OTHER END OF SAID REFLECTOR AND IN THE PATH OF SAID ADDITIONAL AMOUNT OF LIGHT FOR REFLECTING THE SAME INTO SAID MAIN BEAMS.
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) | 1969-08-08 | 1970-02-07 | 1970-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-08 | 1974-02-07 | 1974-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-08 | 1978-02-07 | 1978-08-09 | $7700.00 | Window Closed / Lapsed |