Patent US2946273A successfully refreshed from Google Patents.
US2946273A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roll film developing machine
Assignee: Individual
•
Filing: 1958-08-01
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Granted: 1960-07-26
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Expires: 1978-08-01
Abstract
No abstract record available.
Inventors
- 👤 Hitzl Harry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:17
CPC Classifications
G; G03; G03D; G03D13/00; G03D13/02; G03D13/04; G03D13/043; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18416; Y10T74/18424; Y10T74/18448
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1321902A
Cited
US957398A
Cited
US1016924A
Cited
US1136703A
Cited
US1804138A
Cited
GB685474A
Cited
US2797902A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-26 | 1964-01-25 | 1964-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-26 | 1968-01-25 | 1968-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-26 | 1972-01-25 | 1972-07-26 | $7700.00 | Window Closed / Lapsed |