Patent US2842025A successfully refreshed from Google Patents.
US2842025A
Expired / Lapsed
US
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Photographic method
Assignee: Logetronics Inc
•
Filing: 1954-09-02
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Granted: 1958-07-08
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Expires: 1974-09-02
Abstract
No abstract record available.
Inventors
- 👤 Dwin R Craig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:51
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/72; G03B27/725
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1742943A
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US2101932A
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US2309048A
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US2484299A
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US2480425A
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US2480423A
Cited
US2668474A
Cited
US2691917A
Cited
GB713285A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-07 | 1962-01-06 | 1962-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-07 | 1966-01-06 | 1966-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-07 | 1970-01-06 | 1970-07-08 | $7700.00 | Window Closed / Lapsed |