US2447478A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grinding machine with wheel dresser
Assignee: Timken Co
•
Filing: 1945-02-19
•
Granted: 1948-08-17
•
Expires: 1965-02-19
Abstract
No abstract record available.
Inventors
- 👤 John W Rundt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:08
CPC Classifications
B; B24; B24B; B24B53/00; B24B53/06; B24B53/08; B24B53/081
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1684485A
Cited
US1416462A
Cited
US1825753A
Cited
US2178875A
Cited
US2171902A
Cited
US2335207A
Cited
US2409240A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-08-17 | 1952-02-16 | 1952-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-08-17 | 1956-02-16 | 1956-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-08-17 | 1960-02-16 | 1960-08-17 | $7700.00 | Window Closed / Lapsed |