Patent US2716893A successfully refreshed from Google Patents.
US2716893A
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Means and apparatus for utilizing gyrodynamic energy
Assignee: General Dynamics Corp
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Filing: 1949-10-18
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Granted: 1955-09-06
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Expires: 1969-10-18
Abstract
No abstract record available.
Inventors
- 👤 Edwin H Birdsall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:43
CPC Classifications
G; G01; G01C; G01C19/00; G01C19/02; G01C19/04; G01C19/28; Y; Y10; Y10T; Y10T74/00; Y10T74/12; Y10T74/1261; Y10T74/1275
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1890831A
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US1801619A
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US1841606A
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US2511178A
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GB599826A
Cited
FR934046A
Cited
US2479122A
Cited
US2466055A
Cited
US2615961A
Cited
US2605093A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-09-05 | 1959-03-07 | 1959-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-09-05 | 1963-03-07 | 1963-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-09-05 | 1967-03-07 | 1967-09-06 | $7700.00 | Window Closed / Lapsed |