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US2449648A
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Method of and apparatus for manufacturing flash lamps
Assignee: General Electric Co
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Filing: 1944-02-26
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Granted: 1948-09-21
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Expires: 1964-02-26
Abstract
No abstract record available.
Inventors
- 👤 Jr John Flaws
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:29
CPC Classifications
F; F21; F21K; F21K5/00; F21K5/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US542393A
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US951293A
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US1197324A
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GB270210A
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US1831763A
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US2272586A
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US2291983A
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US2329024A
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US2363055A
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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) | 1951-09-21 | 1952-03-22 | 1952-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-09-21 | 1956-03-22 | 1956-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-09-21 | 1960-03-22 | 1960-09-21 | $7700.00 | Window Closed / Lapsed |