Patent US2930255A successfully refreshed from Google Patents.
US2930255A
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Dual drive transmissions
Assignee: Northrop Grumman Space and Mission Systems Corp
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Filing: 1958-11-28
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Granted: 1960-03-29
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Expires: 1978-11-28
Abstract
No abstract record available.
Inventors
- 👤 Robert F Bryson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:14
CPC Classifications
H; H01; H01Q; H01Q3/00; H01Q3/02; H01Q3/08; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19023; Y10T74/19126; Y10T74/20; Y10T74/20012; Y10T74/20201; Y10T74/20207; Y10T74/20299; Y10T74/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2313768A
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US2410831A
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US2410827A
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US2557967A
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US2512636A
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US2762234A
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US2840817A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-29 | 1963-09-28 | 1964-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-29 | 1967-09-28 | 1968-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-29 | 1971-09-28 | 1972-03-29 | $7700.00 | Window Closed / Lapsed |