US2791114A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flash lamp and ignition means therefor
Assignee: General Electric Co
•
Filing: 1954-10-29
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Granted: 1957-05-07
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Expires: 1974-10-29
Abstract
No abstract record available.
Inventors
- 👤 George W Cressman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:37
CPC Classifications
F; F21; F21K; F21K5/00; F21K5/02
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
86 words
A FLASH LAMP COMPRISING A SEALED BULB HAVING A VOLUME OF LESS THAN ABOUT 10 CC., A MOUNT SEALED INTO SAID BULB BY A BUTT SEAL, A FILLING OF A COMBUSTION-SUPPORTING GAS IN SAID BULB, A QUANTITYU OF COMBUSTIBLE METALLIC FILAMENTARY MATERIAL LOOSELY DISTRIBUTED WITHIN SAID BULB, AND IGNITION MEANS CARRIED BY SAID MOUNT AND LOCATED IN SAID BULB FOR IGNITING SAID COMBUSTIBLE MATERIAL, SAID IGNITION MEANS COMPRISING A PRIMER COMPOSITION CONSISTING ESSENTIALLY OF A POWER ADMIXTURE OF MAGNESIUM ZIRCONIUM AND POTASSIUM PERCHLORATE IN THE APPROXIMATE
References Cited (Backward Citations)
US2280598A
Cited
US2315099A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-05-06 | 1960-11-05 | 1961-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-05-06 | 1964-11-05 | 1965-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-05-06 | 1968-11-05 | 1969-05-07 | $7700.00 | Window Closed / Lapsed |