US2455002A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crankpin grinding machine
Assignee: Saint Gobain Abrasives Inc
•
Filing: 1946-06-15
•
Granted: 1948-11-30
•
Expires: 1966-06-15
Abstract
No abstract record available.
Inventors
- 👤 Francis W Foudy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:56
CPC Classifications
B; B24; B24B; B24B5/00; B24B5/36; B24B5/42; Y; Y10; Y10T; Y10T279/00; Y10T279/12; Y10T279/1274; Y10T279/1291; Y10T279/14; Y10T279/18
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1755937A
Cited
US2220490A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-11-30 | 1952-05-31 | 1952-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-30 | 1956-05-31 | 1956-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-30 | 1960-05-31 | 1960-11-30 | $7700.00 | Window Closed / Lapsed |