US3188162A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making flash lamps
Assignee: General Electric Co
•
Filing: 1961-02-23
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Granted: 1965-06-08
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Expires: 1981-02-23
Abstract
No abstract record available.
Inventors
- 👤 Robert M Anderson
- 👤 Jr Louis A Demchock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 01:22
CPC Classifications
F; F21; F21K; F21K5/00; F21K5/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
THE METHOD OF MAKING A FLASH LAMP COMPRISING THE STEPS OF SEALING A LAMP MOUNT, COMPRISING A PAIR OF LEADIN WIRES HAVING A FILAMENT CONNECTED THEREACROSS, INTO ONE END OF GLASS TUBE TO FORM A SEALED END THEREON WITH THE SAID FILAMENT LOCATED A SHORT DISTANCE INWARDLY OF THE GLASS TUBE FROM ITS SAID SEALED END, APPLYING THROUGH THE OPEN OTHER END OF SAID GLASS TUBE A QUANTITY OF PRIMER MATERIAL ONTO THE FILAMENT AND THE ADJACENT PORTIONS OF SAID LEAD-IN WIRES, INTRODUCING INTO THE GLASS TUBE THROUGH ITS SAID OPEN END AND POSITIONING ADJACENT THE SAID FILAMENT A QUANTITY OF READILY COMBUSTIBLE METALLIC MATERIAL, EXHAUSTING AND INTRODUCING INTO THE SAID GLASS TUBE THROUGH ITS SAID OPEN END A COMBUSTION-SUPPORTING GASEOUS MEDIUM, AND THEN HEATING AND SEALING OFF AN INTERMEDIATE PORTION OF THE LENGTH OF SAID GLASS TUBE LOCATED BETWEEN ITS SAID OPEN END AND THE SAID COMBUSTIBLE MATERIAL.
Claim 2
Independent Claim
149 words
THE METHOD OF MAKING A FLASH LAMP COMPRISING THE STEPS OF SEALING A LAMP MOUNT, COMPRISING A PAIR OF LEADIN WIRES HAVING A FILAMENT CONNECTED THEREACROSS, INTO ONE END OF GLASS TUBE TO FORM A SEALED END THEREON WITH THE SAID FILAMENT LOCATED A SHORT DISTANCE INWARDLY OF THE GLASS TUBE FROM ITS SAID SEALED END, APPLYING THROUGH THE OPEN OTHER END OF SAID GLASS TUBE A QUANTITY OF PRIMER MATERIAL ONTO THE FILAMENT AND THE ADJACENT PORTIONS OF SAID LEAD-IN WIRES, INTRODUCING INTO THE GLASS TUBE THROUGH ITS SAID OPEN END AND POSITIONING ADJACENT THE SAID FILAMENT A QUANTITY OF READILY COMBUSTIBLE METALLIC MATERIAL, EXHAUSTING AND INTRODUCING INTO THE SAID GLASS TUBE THROUGH ITS SAID OPEN END A COMBUSTION-SUPPORTING GASEOUS MEDIUM, AND THEN HEATING AND SEALING OFF AN INTERMEDIATE PORTION OF THE LENGTH OF SAID GLASS TUBE LOCATED BETWEEN ITS SAID OPEN END AND THE SAID COMBUSTIBLE MATERIAL.
References Cited (Backward Citations)
CA553831A
Cited
US2270162A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-06-07 | 1968-12-07 | 1969-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-07 | 1972-12-07 | 1973-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-07 | 1976-12-07 | 1977-06-08 | $7700.00 | Window Closed / Lapsed |