Patent US2446958A successfully refreshed from Google Patents.
US2446958A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Film-developing holder
Assignee: Motors Liquidation Co
•
Filing: 1945-03-31
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Granted: 1948-08-10
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Expires: 1965-03-31
Abstract
No abstract record available.
Inventors
- 👤 Charles W Rowland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:01
CPC Classifications
G; G03; G03D; G03D13/00; G03D13/02; G03D13/08; G03D13/12; G03D13/125
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1849707A
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US1890366A
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US1958791A
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US2037991A
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US2037757A
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US2019595A
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US2365485A
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US2288325A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-08-10 | 1952-02-09 | 1952-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-08-10 | 1956-02-09 | 1956-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-08-10 | 1960-02-09 | 1960-08-10 | $7700.00 | Window Closed / Lapsed |