Patent US3401641A successfully refreshed from Google Patents.
US3401641A
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Three area vane type hydraulic pump having force modulating flow restrictor means
Assignee: American Brake Shoe Co
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Filing: 1966-02-16
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Granted: 1968-09-17
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Expires: 1986-02-16
Abstract
No abstract record available.
Inventors
- 👤 Cecil E Adams
- 👤 Randall E Griffith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:46
CPC Classifications
F; F01; F01C; F01C21/00; F01C21/08; F01C21/0809; F01C21/0881; F01C21/0818; F01C21/0854; F01C21/0863; F04; F04C; F04C2/00; F04C2/30; F04C2/34; F04C2/344
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2809595A
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US3054357A
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US2968252A
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US3103893A
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US3223044A
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US3329067A
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US3257958A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-17 | 1972-03-18 | 1972-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-17 | 1976-03-18 | 1976-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-17 | 1980-03-18 | 1980-09-17 | $7700.00 | Window Closed / Lapsed |