US2441506A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recurrent motion abrader
Assignee: Individual
•
Filing: 1946-04-10
•
Granted: 1948-05-11
•
Expires: 1966-04-10
Abstract
No abstract record available.
Inventors
- 👤 Ralph T Osman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:47
CPC Classifications
B; B24; B24B; B24B23/00; B24B23/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US157261A
Cited
US233067A
Cited
US681837A
Cited
US2032382A
Cited
US2270309A
Cited
US2334172A
Cited
US2367668A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-05-11 | 1951-11-10 | 1952-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-05-11 | 1955-11-10 | 1956-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-05-11 | 1959-11-10 | 1960-05-11 | $7700.00 | Window Closed / Lapsed |