US2465453A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Film cutter
Assignee: HOLBROOK MICROFILMING SERVICE
•
Filing: 1945-07-17
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Granted: 1949-03-29
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Expires: 1965-07-17
Abstract
No abstract record available.
Inventors
- 👤 John K Holbrook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:42
CPC Classifications
G; G03; G03D; G03D15/00; G03D15/04; G03D15/043; Y; Y10; Y10T; Y10T83/00; Y10T83/444; Y10T83/4539; Y10T83/4637; Y10T83/464; Y10T83/849; Y10T83/868; Y10T83/869; Y10T83/8765
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1037675A
Cited
US1474748A
Cited
US1684617A
Cited
US2021064A
Cited
US2188871A
Cited
US2275064A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-03-28 | 1952-09-27 | 1953-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-28 | 1956-09-27 | 1957-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-28 | 1960-09-27 | 1961-03-29 | $7700.00 | Window Closed / Lapsed |