Patent US1812901A successfully refreshed from Google Patents.
US1812901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rag ripper
Assignee: Individual
•
Filing: 1929-03-14
•
Granted: 1931-07-07
•
Expires: 1949-03-14
Abstract
No abstract record available.
Inventors
- 👤 Philip B Rohner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 18:47
CPC Classifications
D; D06; D06H; D06H7/00; D06H7/04; Y; Y10; Y10T; Y10T83/00; Y10T83/727; Y10T83/849; Y10T83/853; Y10T83/855; Y10T83/856; Y10T83/857; Y10T83/858; Y10T83/889; Y10T83/929; Y10T83/9493
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) | 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 |