Patent US1941880A successfully refreshed from Google Patents.
US1941880A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reel
Assignee: Individual
•
Filing: 1931-09-21
•
Granted: 1934-01-02
•
Expires: 1951-09-21
Abstract
No abstract record available.
Inventors
- 👤 Charles I Earll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:20
CPC Classifications
D; D06; D06F; D06F53/00; D06F53/04; D06F53/045; B; B65; B65H; B65H75/00; B65H75/02; B65H75/34; B65H75/38; B65H75/44; B65H75/4418; B65H75/4428; B65H75/4434; B65H75/48; B65H75/486; B65H2701/00; B65H2701/30; B65H2701/35; B65H2701/352
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1937-01-01 | 1937-07-03 | 1938-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-01-01 | 1941-07-03 | 1942-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-01-01 | 1945-07-03 | 1946-01-02 | $7700.00 | Window Closed / Lapsed |