US2872622A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Underwater flash producing system
Assignee: Individual
•
Filing: 1954-06-18
•
Granted: 1959-02-03
•
Expires: 1974-06-18
Abstract
No abstract record available.
Inventors
- 👤 Harold E Edgerton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:47
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/02; G03B17/08; F; F21; F21V; F21V23/00; F21V23/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2624831A
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US2509005A
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US2697392A
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US2754721A
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US2760417A
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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) | 1962-02-02 | 1962-08-04 | 1963-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-02 | 1966-08-04 | 1967-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-02 | 1970-08-04 | 1971-02-03 | $7700.00 | Window Closed / Lapsed |