US3280320A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic lighting device
Assignee: GTE Sylvania Inc
•
Filing: 1964-03-27
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Granted: 1966-10-18
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Expires: 1984-03-27
Abstract
No abstract record available.
Inventors
- 👤 William A Beaton
- 👤 Jr William H Morgan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:24
CPC Classifications
F; F21; F21V; F21V19/00; F21V19/02; G; G03; G03B; G03B15/00; G03B15/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
A LIGHTING DEVICE COMPRISING: A REFLECTOR; MEANS FORMING AN APERTURE WITHIN SAID REFLECTOR; A TWO PIECE MOVABLE SOCKET COMPRISING FORWARD AND REARWARD INSULATORS; A LAMP SHELL AND A LAMP CONTACT DISPOSED BETWEEN SAID FORWARD AND REARWARD INSULATORS; SAID SOCKET DISPOSED BEHIND SAID REFLECTOR; A LAMP HELD WITHIN SAID MOVABLE SOCKET AND EXTENDING THROUGH SAID APERTURE IN SAID REFLECTOR; SAID MOVABLE SOCKET HAVING A FORWARD CIRCULAT LEDGE CIRCUMFERENTIALLY DISPOSED THEREABOUT; A COMPRESSION SPRING, THE INNER DIAMETER OF SAID FITTING AROUND SAID CIRCULAR LEDGE OF SAID MOVABLE SOCKET WHEREBY SAID SOCKET IS MOVED AGAINST THE FORCE OF SAID COMPRESSION SPRING.
Claim 2
Dependent Claim
98 words
A LIGHTING DEVICE COMPRISING: A REFLECTOR; MEANS FORMING AN APERTURE WITHIN SAID REFLECTOR; A TWO PIECE MOVABLE SOCKET COMPRISING FORWARD AND REARWARD INSULATORS; A LAMP SHELL AND A LAMP CONTACT DISPOSED BETWEEN SAID FORWARD AND REARWARD INSULATORS; SAID SOCKET DISPOSED BEHIND SAID REFLECTOR; A LAMP HELD WITHIN SAID MOVABLE SOCKET AND EXTENDING THROUGH SAID APERTURE IN SAID REFLECTOR; SAID MOVABLE SOCKET HAVING A FORWARD CIRCULAT LEDGE CIRCUMFERENTIALLY DISPOSED THEREABOUT; A COMPRESSION SPRING, THE INNER DIAMETER OF SAID FITTING AROUND SAID CIRCULAR LEDGE OF SAID MOVABLE SOCKET WHEREBY SAID SOCKET IS MOVED AGAINST THE FORCE OF SAID COMPRESSION SPRING.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-17 | 1970-04-18 | 1970-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-17 | 1974-04-18 | 1974-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-17 | 1978-04-18 | 1978-10-18 | $7700.00 | Window Closed / Lapsed |