US2723610A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Film developing machine
Assignee: Ritter Co Inc
•
Filing: 1951-06-30
•
Granted: 1955-11-15
•
Expires: 1971-06-30
Abstract
No abstract record available.
Inventors
- 👤 Morrison Montford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:24
CPC Classifications
G; G03; G03D; G03D3/00; G03D3/08; G03D3/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US432903A
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US437104A
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US1825709A
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US1939144A
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US1995825A
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US2325120A
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US2541016A
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US2544644A
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US2542830A
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US2583379A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-11-14 | 1959-05-16 | 1959-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-14 | 1963-05-16 | 1963-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-14 | 1967-05-16 | 1967-11-15 | $7700.00 | Window Closed / Lapsed |