Patent US2996638A successfully refreshed from Google Patents.
Patent US2241983A successfully refreshed from Google Patents.
US2539941A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Forming and cutting tool
Assignee: Individual
•
Filing: 1946-08-21
•
Granted: 1951-01-30
•
Expires: 1966-08-21
Abstract
No abstract record available.
Inventors
- 👤 Allen Reginald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:01
CPC Classifications
B; B24; B24B; B24B53/00; B24B53/06; B24B53/065; B23; B23Q; B23Q35/00; B23Q35/04; B23Q35/08; B23Q35/10; B23Q35/101; B23Q35/102; Y; Y10; Y10T; Y10T82/00; Y10T82/14; Y10T82/148
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1384726A
Cited
US2312347A
Cited
US2372597A
Cited
US2372732A
Cited
US2415010A
Cited
US2437596A
Cited
US2434615A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-29 | 1954-07-31 | 1955-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-29 | 1958-07-31 | 1959-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-29 | 1962-07-31 | 1963-01-30 | $7700.00 | Window Closed / Lapsed |