Patent US1791927A successfully refreshed from Google Patents.
US1791927A
Expired / Lapsed
US
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Program device
Assignee: International Time Recording Co
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Filing: 1923-10-30
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Granted: 1931-02-10
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Expires: 1943-10-30
Abstract
No abstract record available.
Inventors
- 👤 Edward F Geiger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:20
CPC Classifications
G; G04; G04C; G04C21/00; G04C21/16; G04C21/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1934-02-09 | 1934-08-11 | 1935-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-02-09 | 1938-08-11 | 1939-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-02-09 | 1942-08-11 | 1943-02-10 | $7700.00 | Window Closed / Lapsed |