Patent US4236860A successfully refreshed from Google Patents.
Patent US1677309A successfully refreshed from Google Patents.
US1677309A
Expired / Lapsed
US
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Registering and cementing cinematographic films
Assignee: Technicolor Motion Picture Corp
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Filing: 1921-09-15
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Granted: 1928-07-17
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Expires: 1941-09-15
Abstract
No abstract record available.
Inventors
- 👤 Leonard T Troland
- 👤 Joseph A Ball
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:23
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/22; Y; Y10; Y10T; Y10T156/00; Y10T156/17; Y10T156/1702; Y10T156/1712; Y10T156/1722; Y10T156/1727; Y10T156/1729; Y10T156/1741
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) | 1931-07-17 | 1932-01-16 | 1932-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-07-17 | 1936-01-16 | 1936-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-07-17 | 1940-01-16 | 1940-07-17 | $7700.00 | Window Closed / Lapsed |