Patent US3460481A successfully refreshed from Google Patents.
US3460481A
Expired / Lapsed
US
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Rotor-stator gear set in a hydraulic motor-pump device
Assignee: Northrop Grumman Space and Mission Systems Corp
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Filing: 1967-09-27
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Granted: 1969-08-12
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Expires: 1987-09-27
Abstract
No abstract record available.
Inventors
- 👤 Hollis N White Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:02
CPC Classifications
F; F04; F04C; F04C2/00; F04C2/08; F04C2/082; F04C2/086; F04C2/10; F04C2/103; Y; Y10; Y10S; Y10S417/00; Y10S417/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2345975A
Cited
US2586964A
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US2619040A
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US2815718A
Cited
US3289602A
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US3389618A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-08-11 | 1973-02-10 | 1973-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-11 | 1977-02-10 | 1977-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-11 | 1981-02-10 | 1981-08-12 | $7700.00 | Window Closed / Lapsed |