Patent US3481147A successfully refreshed from Google Patents.
US3481147A
Expired / Lapsed
US
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Hydraulic power system
Assignee: Northrop Grumman Space and Mission Systems Corp
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Filing: 1967-12-15
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Granted: 1969-12-02
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Expires: 1987-12-15
Abstract
No abstract record available.
Inventors
- 👤 Raymon L Goff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:57
CPC Classifications
B; B62; B62D; B62D5/00; B62D5/06; B62D5/09; B62D5/093; B62D5/097; F; F15; F15B; F15B9/00; F15B9/02; F15B9/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-01 | 1973-06-02 | 1973-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-01 | 1977-06-02 | 1977-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-01 | 1981-06-02 | 1981-12-02 | $7700.00 | Window Closed / Lapsed |