Patent US2798368A successfully refreshed from Google Patents.
US2798368A
Expired / Lapsed
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Flash lamp
Assignee: General Electric Co
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Filing: 1953-06-01
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Granted: 1957-07-09
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Expires: 1973-06-01
Abstract
No abstract record available.
Inventors
- 👤 Robert M Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:21
CPC Classifications
F; F21; F21K; F21K5/00; F21K5/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
A FLASH LAMP COMPRISING A SEALED BULB CONTAINING A COMBUSTION-SUPPORTING GASEOUS FILLING, A PAIR OF LEADINGIN CONDUCTORS EXTENDING INTO SAID BULB, A FILAMENT CONNECTED ACROSS SAID LEADING-IN CONDUCTORS, A COMPACT BODY OF FULMINATING MATERIAL WITHIN SAID BULB IN POSITION TO BE IGNITED UPON HEATING OF SAID FILAMENT, SAID FULMINATING MATERIAL CONSTITUTING SUBSTANTIALLY THE SOLE SOURCE OF ACTINIC RADIATION PRODUCED BY THE LAMP AND COMPRISING AN ADMIXTURE CONSISTING ESSENTIALLY OF FINELY DIVIDED ZIR-
Claim 2
Dependent Claim
72 words
A FLASH LAMP COMPRISING A SEALED BULB CONTAINING A COMBUSTION-SUPPORTING GASEOUS FILLING, A PAIR OF LEADINGIN CONDUCTORS EXTENDING INTO SAID BULB, A FILAMENT CONNECTED ACROSS SAID LEADING-IN CONDUCTORS, A COMPACT BODY OF FULMINATING MATERIAL WITHIN SAID BULB IN POSITION TO BE IGNITED UPON HEATING OF SAID FILAMENT, SAID FULMINATING MATERIAL CONSTITUTING SUBSTANTIALLY THE SOLE SOURCE OF ACTINIC RADIATION PRODUCED BY THE LAMP AND COMPRISING AN ADMIXTURE CONSISTING ESSENTIALLY OF FINELY DIVIDED ZIR-
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) | 1960-07-08 | 1961-01-07 | 1961-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-08 | 1965-01-07 | 1965-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-08 | 1969-01-07 | 1969-07-09 | $7700.00 | Window Closed / Lapsed |