Patent US2875677A successfully refreshed from Google Patents.
US2875677A
Expired / Lapsed
US
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Photographic-printing apparatus
Assignee: Rotolite Corp
•
Filing: 1954-05-21
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Granted: 1959-03-03
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Expires: 1974-05-21
Abstract
No abstract record available.
Inventors
- 👤 Robert M Ellis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:04
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/02; G03B27/14; G03B27/18; G03B27/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2308130A
Cited
US2297573A
Cited
US2467241A
Cited
US2548936A
Cited
FR987549A
Cited
US2615381A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-02 | 1962-09-01 | 1963-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-02 | 1966-09-01 | 1967-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-02 | 1970-09-01 | 1971-03-03 | $7700.00 | Window Closed / Lapsed |