Patent FR2662073A1 successfully refreshed from Google Patents.
US2345920A
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Hydraulic drive
Assignee: Oilgear Co
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Filing: 1939-12-29
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Granted: 1944-04-04
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Expires: 1959-12-29
Abstract
No abstract record available.
Inventors
- 👤 James K Douglas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:51
CPC Classifications
F; F16; F16H; F16H61/00; F16H61/38; F16H61/40; F16H61/4061; B; B23; B23D; B23D7/00; B23D7/10; B23Q; B23Q5/00; B23Q5/02; B23Q5/027; B23Q5/033; B24; B24B; B24B47/00; B24B47/02; B24B47/08; F04; F04C; F04C14/00; F15; F15B; F15B15/00; F15B15/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1947-04-04 | 1947-10-04 | 1948-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-04-04 | 1951-10-04 | 1952-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-04-04 | 1955-10-04 | 1956-04-04 | $7700.00 | Window Closed / Lapsed |