Patent US1812980A successfully refreshed from Google Patents.
US1812980A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manually operated stamp cutting
Assignee: —
•
Filing: —
•
Granted: 1931-07-07
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Expires: 1948-07-07
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:34
CPC Classifications
B; B41; B41J; B41J13/00; B41J13/10; B41J13/103; G; G07; G07B; G07B17/00; G07B17/00459; G07B17/00508; Y; Y10; Y10T; Y10T156/00; Y10T156/12; Y10T156/1348; Y10T156/1352; Y10T156/17; Y10T156/1788; Y10T156/179
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) | 1934-07-06 | 1935-01-05 | 1935-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-07-06 | 1939-01-05 | 1939-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-07-06 | 1943-01-05 | 1943-07-07 | $7700.00 | Window Closed / Lapsed |