US3046950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Constant mechanical advantage rotary hydraulic device
Assignee: Whiting Corp
•
Filing: 1958-01-22
•
Granted: 1962-07-31
•
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 09:32
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
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FR691793A
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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 |