Patent US6795925B2 successfully refreshed from Google Patents.
Patent US3492965A successfully refreshed from Google Patents.
US3492965A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Propulsion system and related devices
Assignee: DAVID J WAYFIELD
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Filing: 1961-06-12
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Granted: 1970-02-03
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Expires: 1981-06-12
Abstract
No abstract record available.
Inventors
- 👤 David J Wayfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:51
CPC Classifications
B; B63; B63H; B63H25/00; B63H25/46; B63G; B63G8/00; B63G8/14; B63G8/16; B63H11/00; B63H11/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
A SUBMERSIBLE HOUSING, A REACTION TYPE PROPULSION MEANS COMPRISING TWO NOZZLES AT OPPOSITE ENDS OF SAID HOUSING WITH THEIR ORIFICES AIMED OPPOSITELY TO EACH OTHER; TWO DEFLECTING CONES, ONE CENTERED IN EACH ORIFICE, SIX ACTUATORS, THREE HOLDING AND POSITIONING EACH OF SAID CONES AND, MEANS FOR OPERATING SAID ACTUATORS TO CONTROL SAID NOZZLES IN A MANNER SUCH THAT THE SUBMERSIBLE HOUSING MAY BE ORIENTED AS TO EITHER POSITION, DEPTH, HEADING OR ATTITUDE.
Claim 2
Dependent Claim
72 words
A SUBMERSIBLE HOUSING, A REACTION TYPE PROPULSION MEANS COMPRISING TWO NOZZLES AT OPPOSITE ENDS OF SAID HOUSING WITH THEIR ORIFICES AIMED OPPOSITELY TO EACH OTHER; TWO DEFLECTING CONES, ONE CENTERED IN EACH ORIFICE, SIX ACTUATORS, THREE HOLDING AND POSITIONING EACH OF SAID CONES AND, MEANS FOR OPERATING SAID ACTUATORS TO CONTROL SAID NOZZLES IN A MANNER SUCH THAT THE SUBMERSIBLE HOUSING MAY BE ORIENTED AS TO EITHER POSITION, DEPTH, HEADING OR ATTITUDE.
References Cited (Backward Citations)
US1178739A
Cited
US1296816A
Cited
GB122869A
Cited
US2330674A
Cited
US2395435A
Cited
US2465457A
Cited
US2461347A
Cited
US2613497A
Cited
US2974907A
Cited
US2921435A
Cited
US3021095A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-02 | 1973-08-04 | 1974-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-02 | 1977-08-04 | 1978-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-02 | 1981-08-04 | 1982-02-03 | $7700.00 | Window Closed / Lapsed |