US2949839A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Processor for photographic paper
Assignee: Viewlex Inc
•
Filing: 1958-01-06
•
Granted: 1960-08-23
•
Expires: 1978-01-06
Abstract
No abstract record available.
Inventors
- 👤 Theodore F Aronson
- 👤 Floyd A Lyon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:34
CPC Classifications
G; G03; G03D; G03D13/00; G03D13/006; G03D3/00; G03D3/08; G03D3/13; G03D3/135
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US920803A
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US1716878A
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US1891917A
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US1987805A
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US1965504A
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US2244170A
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US2338605A
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US2328306A
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US2445504A
Cited
US2535352A
Cited
US2623225A
Cited
US2788587A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-23 | 1964-02-22 | 1964-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-23 | 1968-02-22 | 1968-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-23 | 1972-02-22 | 1972-08-23 | $7700.00 | Window Closed / Lapsed |