Patent US2952780A successfully refreshed from Google Patents.
US2952780A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic printing apparatus
Assignee: Individual
•
Filing: 1954-01-08
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Granted: 1960-09-13
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Expires: 1974-01-08
Abstract
No abstract record available.
Inventors
- 👤 Jr Elwood C Rogers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:09
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/72; G03B27/80
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1973512A
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US2258994A
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US2293425A
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US2353218A
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US2469076A
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US2438303A
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US2514595A
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US2484299A
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US2579764A
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US2654858A
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US2666858A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-13 | 1964-03-14 | 1964-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-13 | 1968-03-14 | 1968-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-13 | 1972-03-14 | 1972-09-13 | $7700.00 | Window Closed / Lapsed |