Patent US1714159A successfully refreshed from Google Patents.
Patent US4642714A successfully refreshed from Google Patents.
US2499994A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Double wedge lock for inserted blade cutters
Assignee: Individual
•
Filing: 1946-11-27
•
Granted: 1950-03-07
•
Expires: 1966-11-27
Abstract
No abstract record available.
Inventors
- 👤 Frank A Hart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:30
CPC Classifications
B; B23; B23C; B23C5/00; B23C5/16; B23C5/20; B23C5/22; B23C5/2265; B23C5/2269; B23C5/24; B23C5/2468; Y; Y10; Y10T; Y10T407/00; Y10T407/19; Y10T407/1906; Y10T407/1908; Y10T407/192; Y10T407/1922; Y10T407/22; Y10T407/2222; Y10T407/2252; Y10T407/226; Y10T407/2272; Y10T407/2282; Y10T407/2284
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
GB150873A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-03-06 | 1953-09-05 | 1954-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-06 | 1957-09-05 | 1958-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-06 | 1961-09-05 | 1962-03-07 | $7700.00 | Window Closed / Lapsed |