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US2973172A
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Radial cell decelerator
Assignee: Northrop Grumman Corp
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Filing: 1957-09-16
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Granted: 1961-02-28
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Expires: 1977-09-16
Abstract
No abstract record available.
Inventors
- 👤 Harold W Bixby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:03
CPC Classifications
B; B64; B64D; B64D1/00; B64D1/02; B64D1/08; B64D1/14; F; F16; F16F; F16F9/00; F16F9/02; F16F9/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2142894A
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US2457205A
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US2713466A
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US2668327A
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US2557105A
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US2728479A
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US2749013A
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US2774560A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-02-28 | 1964-08-29 | 1965-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-02-28 | 1968-08-29 | 1969-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-02-28 | 1972-08-29 | 1973-02-28 | $7700.00 | Window Closed / Lapsed |