US2579741A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motion-picture film developer feeding device
Assignee: Houston Fearless Corp
•
Filing: 1946-11-18
•
Granted: 1951-12-25
•
Expires: 1966-11-18
Abstract
No abstract record available.
Inventors
- 👤 Herbert W Houston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:09
CPC Classifications
G; G03; G03D; G03D3/00; G03D3/08; G03D3/13; G03D3/14; G03D3/135; G03D3/137
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1854604A
Cited
US2029854A
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US2079849A
Cited
US2096231A
Cited
US2146170A
Cited
US2210880A
Cited
US2427943A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-24 | 1955-06-25 | 1955-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-24 | 1959-06-25 | 1959-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-24 | 1963-06-25 | 1963-12-25 | $7700.00 | Window Closed / Lapsed |