US3156207A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control device for boundary layer control vehicle
Assignee: General Electric Co
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Filing: 1961-01-09
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Granted: 1964-11-10
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Expires: 1981-01-09
Abstract
No abstract record available.
Inventors
- 👤 Walter B Giles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:28
CPC Classifications
F; F42; F42B; F42B19/00; F42B19/12; F42B19/125; Y; Y10; Y10S; Y10S415/00; Y10S415/914
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
IN AN UNDERWATER VEHICLE HAVING A HULL WITH A POROUS SUCTION SURFACE PROVIDING LAMINAR BOUNDARY LAYER FLOW THE IMPROVEMENT COMPRISING CONTROL MEANS NORMALLY FLUSH WITH SAID HULL, MEANS FOR EXTENDING SAID CONTROL MEANS INTO SAID LAMINAR BOUNDARY LAYER TO TRIP SAID FLOW CREATING TURBULENCE OVER A SECTION OF SAID HULL DOWNSTREAM FROM SAID CONTROL MEANS.
Claim 2
Dependent Claim
55 words
IN AN UNDERWATER VEHICLE HAVING A HULL WITH A POROUS SUCTION SURFACE PROVIDING LAMINAR BOUNDARY LAYER FLOW THE IMPROVEMENT COMPRISING CONTROL MEANS NORMALLY FLUSH WITH SAID HULL, MEANS FOR EXTENDING SAID CONTROL MEANS INTO SAID LAMINAR BOUNDARY LAYER TO TRIP SAID FLOW CREATING TURBULENCE OVER A SECTION OF SAID HULL DOWNSTREAM FROM SAID CONTROL MEANS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-10 | 1968-05-11 | 1968-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-10 | 1972-05-11 | 1972-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-10 | 1976-05-11 | 1976-11-10 | $7700.00 | Window Closed / Lapsed |