Patent US2969759A successfully refreshed from Google Patents.
US2969759A
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Hydrodynamic drag reduction in vehicles through boundary layer control
Assignee: General Electric Co
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Filing: 1957-09-13
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Granted: 1961-01-31
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Expires: 1977-09-13
Abstract
No abstract record available.
Inventors
- 👤 Walter B Giles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:19
CPC Classifications
B; B63; B63B; B63B1/00; B63B1/32; B63B1/34; F; F42; F42B; F42B19/00; F42B19/12; F42B19/125; Y; Y02; Y02T; Y02T70/00; Y02T70/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1859139A
Cited
FR825134A
Cited
US2261558A
Cited
US2561303A
Cited
US2742247A
Cited
GB717416A
Cited
US2764954A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-31 | 1964-08-01 | 1965-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-31 | 1968-08-01 | 1969-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-31 | 1972-08-01 | 1973-01-31 | $7700.00 | Window Closed / Lapsed |