US2487868A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Underwater camera container with external camera control means
Assignee: Individual
•
Filing: 1945-06-16
•
Granted: 1949-11-15
•
Expires: 1965-06-16
Abstract
No abstract record available.
Inventors
- 👤 Mac G Grigsby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:05
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/02; G03B17/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US616999A
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FR744934A
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US631222A
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US685463A
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US1122104A
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US1179330A
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GB117841A
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GB161780A
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US1661364A
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US1810302A
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US2001682A
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US2237887A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-11-14 | 1953-05-16 | 1953-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-14 | 1957-05-16 | 1957-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-14 | 1961-05-16 | 1961-11-15 | $7700.00 | Window Closed / Lapsed |