US3435774A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic pump or motor
Assignee: BENTON HARBOR ENG WORKS Inc
•
Filing: 1966-12-01
•
Granted: 1969-04-01
•
Expires: 1986-12-01
Abstract
No abstract record available.
Inventors
- 👤 John T Parrett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:10
CPC Classifications
F; F01; F01B; F01B3/00; F01B3/0032; F01B3/0044; F01B3/0055; F01B3/0002; F01B3/0005; F01B3/0035; F01B3/0082; F01B3/0085; F03; F03C; F03C1/00; F03C1/02; F03C1/06; F03C1/0678; F04; F04B; F04B1/00; F04B1/12; F04B1/20; F04B1/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1673514A
Cited
US2237018A
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US2617360A
Cited
US2712794A
Cited
US2895426A
Cited
US2956845A
Cited
GB852896A
Cited
US3010405A
Cited
US3092036A
Cited
US3122104A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-31 | 1972-09-30 | 1973-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-31 | 1976-09-30 | 1977-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-31 | 1980-09-30 | 1981-04-01 | $7700.00 | Window Closed / Lapsed |