US3003712A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Take-up spool for photographic cameras
Assignee: Graflex Inc
•
Filing: 1959-03-03
•
Granted: 1961-10-10
•
Expires: 1979-03-03
Abstract
No abstract record available.
Inventors
- 👤 Robert L Dalton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 01:52
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/28; G03B17/30; G03B2217/00; G03B2217/26; G03B2217/261
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1304021A
Cited
US2734692A
Cited
US1498133A
Cited
FR924378A
Cited
US2702673A
Cited
US2719679A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-09 | 1965-04-10 | 1965-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-09 | 1969-04-10 | 1969-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-09 | 1973-04-10 | 1973-10-10 | $7700.00 | Window Closed / Lapsed |