Patent US3514223A successfully refreshed from Google Patents.
US3514223A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic pump
Assignee: Enerpac Tool Group Corp
•
Filing: 1968-08-19
•
Granted: 1970-05-26
•
Expires: 1988-08-19
Abstract
No abstract record available.
Inventors
- 👤 Richard C Hare
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:56
CPC Classifications
F; F04; F04B; F04B53/00; F04B53/10; F04B53/1002; F04B53/101; F04B1/00; F04B1/12; F04B1/14
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1757139A
Cited
US2455289A
Cited
US2940323A
Cited
US2941475A
Cited
US3148707A
Cited
US3236189A
Cited
US3178888A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-25 | 1973-11-24 | 1974-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-25 | 1977-11-24 | 1978-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-25 | 1981-11-24 | 1982-05-26 | $7700.00 | Window Closed / Lapsed |