Patent US3067831A successfully refreshed from Google Patents.
US3067831A
Expired / Lapsed
US
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Hydraulically driven motorized wheel
Assignee: PETERS CO
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Filing: 1960-08-15
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Granted: 1962-12-11
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Expires: 1980-08-15
Abstract
No abstract record available.
Inventors
- 👤 Charles B Willock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:05
CPC Classifications
B; B60; B60K; B60K17/00; B60K17/04; B60K17/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US880009A
Cited
US979262A
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US2361098A
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US2357334A
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US2507357A
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US2639652A
Cited
US3008424A
Cited
US2941608A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-10 | 1966-06-11 | 1966-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-10 | 1970-06-11 | 1970-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-10 | 1974-06-11 | 1974-12-11 | $7700.00 | Window Closed / Lapsed |