Patent US3443482A successfully refreshed from Google Patents.
US3443482A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stator-controlled hydraulic motor
Assignee: Pan American Petroleum Corp
•
Filing: 1966-12-19
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Granted: 1969-05-13
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Expires: 1986-12-19
Abstract
No abstract record available.
Inventors
- 👤 James L Lummus
- 👤 Arthur Park
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:36
CPC Classifications
E; E21; E21B; E21B4/00; E21B4/02; F; F04; F04C; F04C15/00; F04C15/0003; F04C15/0007; F04C2/00; F04C2/08; F04C2/10; F04C2/107; F04C2/1071; F04C2/1073
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2329386A
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US2545604A
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US2532145A
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US2695565A
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US2957427A
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US2874643A
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US3011445A
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US3028812A
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US3309999A
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US3354537A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-12 | 1972-11-11 | 1973-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-12 | 1976-11-11 | 1977-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-12 | 1980-11-11 | 1981-05-13 | $7700.00 | Window Closed / Lapsed |