US2484446A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expansible tooth sprocket
Assignee: Eastman Kodak Co
•
Filing: 1945-04-20
•
Granted: 1949-10-11
•
Expires: 1965-04-20
Abstract
No abstract record available.
Inventors
- 👤 John G Capstaff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:05
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2172637A
Cited
US692177A
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US1661157A
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US1608050A
Cited
US1995189A
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US1988195A
Cited
US2053010A
Cited
US2315731A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-10 | 1953-04-11 | 1953-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-10 | 1957-04-11 | 1957-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-10 | 1961-04-11 | 1961-10-11 | $7700.00 | Window Closed / Lapsed |