US3269795A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic exciter lamp changer
Assignee: RCA Corp
•
Filing: 1964-05-11
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Granted: 1966-08-30
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Expires: 1984-05-11
Abstract
No abstract record available.
Inventors
- 👤 Bjorn F Floden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:52
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/14; G03B21/20; G03B21/2006; G03B21/2013
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
A LAMP CHANGER COMPRISING (A) A ROTATABLY MOUNTED SUPPORT PLATE, SAID PLATE BEING ROTATABLE BETWEEN TWO POSITIONS, (B) MEANS FOR MOUNTING A PAIR OF LAMPS ON SAID PLATE, ONE OF SAID LAMPS TO BE NORMALLY ENERGIZED AND SO MOUNTED ON SAID PLATE AS TO BE AN ILLUMINATING POSITION WHEN SAID PLATE IS IN THE FIRST OF SAID TWO POSITIONS, AND THE OTHER OF SAID LAMPS TO BE NORMALLY UN-ENERGIZED AND SO MOUNTED ON SAID PLATE AS TO BE THE SECOND OF SAID TWO POSITIONS, AT SAID ILLUMINATING POSITION WHEN SAID PLATE IS AT (C) SPRING MEANS FOR RESILIENTLY HOLDING SAID SUPPORT PLATE IN THE FIRST OF SAID TWO POSITIONS, (D) POWER MEANS RESPONSIVE TO THE FAILURE OF SAID ONE LAMP AT SAID ILLUMINATING POSITION FOR ROTATING SAID
Claim 2
Dependent Claim
127 words
A LAMP CHANGER COMPRISING (A) A ROTATABLY MOUNTED SUPPORT PLATE, SAID PLATE BEING ROTATABLE BETWEEN TWO POSITIONS, (B) MEANS FOR MOUNTING A PAIR OF LAMPS ON SAID PLATE, ONE OF SAID LAMPS TO BE NORMALLY ENERGIZED AND SO MOUNTED ON SAID PLATE AS TO BE AN ILLUMINATING POSITION WHEN SAID PLATE IS IN THE FIRST OF SAID TWO POSITIONS, AND THE OTHER OF SAID LAMPS TO BE NORMALLY UN-ENERGIZED AND SO MOUNTED ON SAID PLATE AS TO BE THE SECOND OF SAID TWO POSITIONS, AT SAID ILLUMINATING POSITION WHEN SAID PLATE IS AT (C) SPRING MEANS FOR RESILIENTLY HOLDING SAID SUPPORT PLATE IN THE FIRST OF SAID TWO POSITIONS, (D) POWER MEANS RESPONSIVE TO THE FAILURE OF SAID ONE LAMP AT SAID ILLUMINATING POSITION FOR ROTATING SAID
References Cited (Backward Citations)
US2590513A
Cited
US2905861A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-29 | 1970-02-28 | 1970-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-29 | 1974-02-28 | 1974-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-29 | 1978-02-28 | 1978-08-30 | $7700.00 | Window Closed / Lapsed |