US3454334A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Film transport apparatus
Assignee: Individual
•
Filing: 1965-11-18
•
Granted: 1969-07-08
•
Expires: 1985-11-18
Abstract
No abstract record available.
Inventors
- 👤 Rouel R Campbell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:52
CPC Classifications
G; G03; G03B; G03B1/00; G03B1/18; G03B1/20; G03B1/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1177137A
Cited
US1388886A
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US1784515A
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FR697977A
Cited
US1966683A
Cited
US2149218A
Cited
US2218763A
Cited
US2372405A
Cited
US2481115A
Cited
US2953965A
Cited
US3303271A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-07 | 1973-01-06 | 1973-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-07 | 1977-01-06 | 1977-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-07 | 1981-01-06 | 1981-07-08 | $7700.00 | Window Closed / Lapsed |