US2136350A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cylinder ridge reamer
Assignee: ZIM Manufacturing Co
•
Filing: 1937-02-15
•
Granted: 1938-11-08
•
Expires: 1957-02-15
Abstract
No abstract record available.
Inventors
- 👤 Herbert A Berkman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:12
CPC Classifications
B; B23; B23D; B23D77/00; B23D77/02; B23D77/04; B23D77/042; B23D2277/00; B23D2277/20; B23D2277/202; Y; Y10; Y10S; Y10S408/00; Y10S408/709; Y10T; Y10T408/00; Y10T408/55; Y10T408/557; Y10T408/558; Y10T82/00; Y10T82/12
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1941-11-07 | 1942-05-09 | 1942-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-11-07 | 1946-05-09 | 1946-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-11-07 | 1950-05-09 | 1950-11-08 | $7700.00 | Window Closed / Lapsed |