Patent US2392071A successfully refreshed from Google Patents.
US2392071A
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US
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Camera shutter
Assignee: PURMA CAMERAS Ltd
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Filing: 1943-04-03
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Granted: 1946-01-01
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Expires: 1963-04-03
Abstract
No abstract record available.
Inventors
- 👤 Terrett Joseph
- 👤 Wood William Barton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:35
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/42; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19614; Y10T74/1987; Y10T74/19874
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) | 1948-12-31 | 1949-07-02 | 1950-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-12-31 | 1953-07-02 | 1954-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-12-31 | 1957-07-02 | 1958-01-01 | $7700.00 | Window Closed / Lapsed |