US2813453A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Film editing machine
Assignee: Westrex Corp
•
Filing: 1953-04-22
•
Granted: 1957-11-19
•
Expires: 1973-04-22
Abstract
No abstract record available.
Inventors
- 👤 Lewis B Browder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:46
CPC Classifications
G; G03; G03B; G03B31/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1204771A
Cited
US1617991A
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US1873342A
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US1932600A
Cited
US1899048A
Cited
US2278781A
Cited
US2283533A
Cited
US2441013A
Cited
US2508789A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-11-18 | 1961-05-20 | 1961-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-18 | 1965-05-20 | 1965-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-18 | 1969-05-20 | 1969-11-19 | $7700.00 | Window Closed / Lapsed |