Patent US3078232A successfully refreshed from Google Patents.
Patent US2277698A successfully refreshed from Google Patents.
US2277698A
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Flash-photography apparatus
Assignee: HERBERT E GRIER
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Filing: 1941-05-13
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Granted: 1942-03-31
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Expires: 1961-05-13
Abstract
No abstract record available.
Inventors
- 👤 Germeshausen Kenneth Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:03
CPC Classifications
H; H01; H01J; H01J61/00; H01J61/96; F; F21; F21K; F21K5/00; F21K5/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1945-03-30 | 1945-09-29 | 1946-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-03-30 | 1949-09-29 | 1950-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-03-30 | 1953-09-29 | 1954-03-31 | $7700.00 | Window Closed / Lapsed |