Patent US3454334A successfully refreshed from Google Patents.
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 15:02
CPC Classifications
G; G03; G03B; G03B1/00; G03B1/18; G03B1/20; G03B1/22
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1177137A
Cited
US1388886A
Cited
US1784515A
Cited
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 |