Patent US3407742A successfully refreshed from Google Patents.
US3407742A
Expired / Lapsed
US
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Variable-displacement turbine-speed hydrostatic pump
Assignee: Battelle Development Corp
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Filing: 1966-05-12
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Granted: 1968-10-29
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Expires: 1986-05-12
Abstract
No abstract record available.
Inventors
- 👤 Robert K Mitchell
- 👤 James C Swain
- 👤 David L Thomas
- 👤 John P Wilcox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:32
CPC Classifications
F; F04; F04C; F04C15/00; F04C15/06; F01; F01C; F01C21/00; F01C21/08; F01C21/0809; F04C14/00; F04C14/18; F04C14/20; F04C14/22; F04C14/223; F04C15/0042
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2149337A
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US2313075A
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US2313246A
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US2538193A
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US2538194A
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US3099964A
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US3173375A
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US3285190A
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US3226013A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-29 | 1972-04-29 | 1972-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-29 | 1976-04-29 | 1976-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-29 | 1980-04-29 | 1980-10-29 | $7700.00 | Window Closed / Lapsed |