Patent US3679703A successfully refreshed from Google Patents.
Patent US2625796A successfully refreshed from Google Patents.
US2625796A
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Multispeed hydraulic power device
Assignee: Blackhawk Manufacturing Co
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Filing: 1950-02-04
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Granted: 1953-01-20
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Expires: 1970-02-04
Abstract
No abstract record available.
Inventors
- 👤 William A Traut
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:51
CPC Classifications
B; B66; B66F; B66F3/00; B66F3/24; B66F3/25; B66F3/42; F; F15; F15B; F15B11/00; F15B11/02; F15B11/028; F15B11/036; F15B15/00; F15B15/20; F15B15/204; F15B2211/00; F15B2211/30; F15B2211/305; F15B2211/30505; F15B2211/50; F15B2211/505; F15B2211/50509; F15B2211/50518; F15B2211/515; F15B2211/5153; F15B2211/5154; F15B2211/70; F15B2211/705; F15B2211/7051; F15B2211/7055; F15B2211/775
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1456014A
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GB296455A
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US1788298A
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US1845232A
Cited
US2049335A
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Cited
US2284228A
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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) | 1956-01-20 | 1956-07-21 | 1957-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-20 | 1960-07-21 | 1961-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-20 | 1964-07-21 | 1965-01-20 | $7700.00 | Window Closed / Lapsed |