US2197538A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal finishing machine
Assignee: Cincinnati Grinders Inc
•
Filing: 1939-07-31
•
Granted: 1940-04-16
•
Expires: 1959-07-31
Abstract
No abstract record available.
Inventors
- 👤 Albert H Dall
- 👤 George W Binns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:23
CPC Classifications
B; B24; B24B; B24B27/00; B24B27/0069; B24B5/00; B24B5/18; B24B5/22; B24B5/225; Y; Y10; Y10S; Y10S29/00; Y10S29/066; Y10S29/101; Y10S451/00; Y10S451/901
Claims Analysis
Total Claims: 0
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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) | 1943-04-16 | 1943-10-16 | 1944-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-04-16 | 1947-10-16 | 1948-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-04-16 | 1951-10-16 | 1952-04-16 | $7700.00 | Window Closed / Lapsed |