US2901954A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Exposure time adjustment in camera shutters
Assignee: Individual
•
Filing: 1955-05-09
•
Granted: 1959-09-01
•
Expires: 1975-05-09
Abstract
No abstract record available.
Inventors
- 👤 Amano Shuichi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:05
CPC Classifications
G; G03; G03B; G03B9/00; G03B9/08; G03B9/36; G03B9/40; G03B9/42
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-31 | 1963-03-02 | 1963-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-31 | 1967-03-02 | 1967-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-31 | 1971-03-02 | 1971-09-01 | $7700.00 | Window Closed / Lapsed |