Patent US2396151A successfully refreshed from Google Patents.
Patent US3486332A successfully refreshed from Google Patents.
US3486332A
Expired / Lapsed
US
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Power plant
Assignee: Northrop Grumman Space and Mission Systems Corp
•
Filing: 1961-10-12
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Granted: 1969-12-30
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Expires: 1981-10-12
Abstract
No abstract record available.
Inventors
- 👤 Anthony E Robertson
- 👤 Richard S Pauliukonis
- 👤 Hans P Eichenberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:08
CPC Classifications
F; F42; F42B; F42B19/00; F42B19/12; F42B19/14; F42B19/20; F01; F01K; F01K3/00; F01K3/18; F01K3/188; F22; F22B; F22B1/00; F22B1/02; F22B1/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2158735A
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US2303995A
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US2484221A
Cited
US2706890A
Cited
US2607192A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-29 | 1973-06-30 | 1973-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-29 | 1977-06-30 | 1977-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-29 | 1981-06-30 | 1981-12-30 | $7700.00 | Window Closed / Lapsed |