Patent US2551414A successfully refreshed from Google Patents.
US1662936A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chamfering device
Assignee: Individual
•
Filing: 1926-04-07
•
Granted: 1928-03-20
•
Expires: 1946-04-07
Abstract
No abstract record available.
Inventors
- 👤 Philipp Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:35
CPC Classifications
B; B23; B23B; B23B5/00; B23B5/16; B23B5/167; Y; Y10; Y10S; Y10S408/00; Y10S408/713; Y10T; Y10T82/00; Y10T82/25; Y10T82/2522; Y10T82/30
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) | 1931-03-20 | 1931-09-19 | 1932-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-03-20 | 1935-09-19 | 1936-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-03-20 | 1939-09-19 | 1940-03-20 | $7700.00 | Window Closed / Lapsed |