Patent US3046950A successfully refreshed from Google Patents.
US3046950A
Expired / Lapsed
US
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Constant mechanical advantage rotary hydraulic device
Assignee: Whiting Corp
•
Filing: 1958-01-22
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Granted: 1962-07-31
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Expires: 1978-01-22
Abstract
No abstract record available.
Inventors
- 👤 Fred T Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:35
CPC Classifications
F; F03; F03C; F03C1/00; F03C1/02; F03C1/04; F03C1/0403; F03C1/0435; F03C1/0438; F01; F01B; F01B13/00; F01B13/04; F01B13/06; F01B13/061; F03C1/0409; F03C1/0428; F03C1/0444; F03C1/047
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2731919A
Cited
US717750A
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US1070706A
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US1418616A
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US1412091A
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US1587343A
Cited
US1485988A
Cited
FR691793A
Cited
US2272684A
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US2048524A
Cited
US2101829A
Cited
US2457101A
Cited
US2431176A
Cited
US2683421A
Cited
US2882831A
Cited
US2822668A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-30 | 1966-01-29 | 1966-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-30 | 1970-01-29 | 1970-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-30 | 1974-01-29 | 1974-07-31 | $7700.00 | Window Closed / Lapsed |