US2943410A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined filing cabinet and viewing arrangement for photographic transparencies
Assignee: Individual
•
Filing: 1956-12-13
•
Granted: 1960-07-05
•
Expires: 1976-12-13
Abstract
No abstract record available.
Inventors
- 👤 Robert W Haggar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:09
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/02; G02B27/022; G02B27/024; G02B27/025
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1576557A
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DE662745C
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US1662304A
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US1845410A
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AT140402B
Cited
US2534561A
Cited
US2656758A
Cited
GB688951A
Cited
US2704901A
Cited
US2821037A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-05 | 1964-01-04 | 1964-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-05 | 1968-01-04 | 1968-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-05 | 1972-01-04 | 1972-07-05 | $7700.00 | Window Closed / Lapsed |