US2958131A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hand engraver
Assignee: Individual
•
Filing: 1958-12-05
•
Granted: 1960-11-01
•
Expires: 1978-12-05
Abstract
No abstract record available.
Inventors
- 👤 Carl E Keene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:30
CPC Classifications
B; B44; B44B; B44B3/00; B44B3/06; B44B3/061; B44B11/00; B44B11/02; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/30084; Y10T409/301176; Y10T409/301624; Y10T409/303416; Y10T409/303696; Y10T409/304088; Y10T409/306216; Y10T409/306384
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1705957A
Cited
US2011195A
Cited
US2177347A
Cited
US2616179A
Cited
US2631375A
Cited
US2699606A
Cited
US2809566A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-01 | 1964-05-02 | 1964-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-01 | 1968-05-02 | 1968-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-01 | 1972-05-02 | 1972-11-01 | $7700.00 | Window Closed / Lapsed |