US2325237A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of finishing gear tooth surfaces
Assignee: Rexnord Industries LLC
•
Filing: 1939-04-08
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Granted: 1943-07-27
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Expires: 1959-04-08
Abstract
No abstract record available.
Inventors
- 👤 Herman W Falk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:38
CPC Classifications
B; B21; B21H; B21H5/00; B21H5/02; B21H5/022; B23; B23F; B23F19/00; B23F19/02; B23F19/04; B23F23/00; B23F23/12; B23F23/1237; B23F23/1281; Y; Y10; Y10T; Y10T29/00; Y10T29/47; Y10T29/477
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) | 1946-07-26 | 1947-01-25 | 1947-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-07-26 | 1951-01-25 | 1951-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-07-26 | 1955-01-25 | 1955-07-27 | $7700.00 | Window Closed / Lapsed |