Patent US1626786A successfully refreshed from Google Patents.
US1626786A
Expired / Lapsed
US
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Film attachment for motion-picture projectors
Assignee: TRAILOGRAF Co Inc
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Filing: 1925-06-25
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Granted: 1927-05-03
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Expires: 1945-06-25
Abstract
No abstract record available.
Inventors
- 👤 William J Citron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:40
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/14; G03B21/20; G03B21/32
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) | 1930-05-02 | 1930-11-01 | 1931-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-05-02 | 1934-11-01 | 1935-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-05-02 | 1938-11-01 | 1939-05-03 | $7700.00 | Window Closed / Lapsed |