Patent US5112303A successfully refreshed from Google Patents.
US2765036A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulically actuated punch
Assignee: Individual
•
Filing: 1953-09-08
•
Granted: 1956-10-02
•
Expires: 1973-09-08
Abstract
No abstract record available.
Inventors
- 👤 Harper Laffie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:05
CPC Classifications
B; B21; B21D; B21D28/00; B21D28/002; Y; Y10; Y10T; Y10T83/00; Y10T83/869; Y10T83/8752; Y10T83/8755; Y10T83/8776; Y10T83/8785; Y10T83/8821; Y10T83/8858; Y10T83/8866
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US472357A
Cited
US539573A
Cited
US1911741A
Cited
US1072822A
Cited
US1076466A
Cited
US1781111A
Cited
US2118648A
Cited
US2163641A
Cited
US2384130A
Cited
US2656820A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-02 | 1960-04-02 | 1960-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-02 | 1964-04-02 | 1964-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-02 | 1968-04-02 | 1968-10-02 | $7700.00 | Window Closed / Lapsed |