Patent US2263401A successfully refreshed from Google Patents.
Patent US3398644A successfully refreshed from Google Patents.
US3398644A
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US
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Fluid-operable reversible motor comprising a rotary piston
Assignee: Schmid and Wezel GmbH and Co
•
Filing: 1966-06-08
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Granted: 1968-08-27
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Expires: 1986-06-08
Abstract
No abstract record available.
Inventors
- 👤 Wetzel Ludwig
- 👤 Belzner Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:33
CPC Classifications
F; F01; F01C; F01C13/00; F01C13/02; A; A61; A61H; A61H13/00; F01C1/00; F01C1/30; F01C1/34; F01C1/344; F01C20/00; F01C20/04; F15; F15B; F15B15/00; F15B15/08; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2544; Y10T137/2554; Y10T137/2559; Y10T137/2564; Y10T137/2567
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2441201A
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US2696787A
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US2627388A
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US2927669A
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US3134334A
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US3039491A
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US3011449A
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US3238848A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-27 | 1972-02-26 | 1972-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-27 | 1976-02-26 | 1976-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-27 | 1980-02-26 | 1980-08-27 | $7700.00 | Window Closed / Lapsed |