Patent US3306046A successfully refreshed from Google Patents.
US3306046A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reaction jet marine engine
Assignee: ONTBOARD MARINE Corp
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Filing: 1965-03-19
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Granted: 1967-02-28
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Expires: 1985-03-19
Abstract
No abstract record available.
Inventors
- 👤 Robert L Trapp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:11
CPC Classifications
B; B63; B63H; B63H11/00; B63H11/02; B63H11/10; B63H11/107; B63H11/11
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
THE COMBINATION OF A REACTION JET HOUSING HAVING A WATERFLOW PASSAGEWAY INCLUDING AN INLET OPENING AND AN OUTLET OPENING, A ROTOR IN SAID PASSAGEWAY INTERMEDIATE SAID INLET AND OUTLET OPENINGS, AND CONDUIT MEANS SEPARATE FROM SAID PASSAGEWAY AFFORDING COMMUNICATING BETWEEN SAID OUTLET OPENING AND SAID INLET OPENING TO PROVIDE A SCAVENGING FLOW OF WATER FROM SAID OUTLET OPENING TO SAID INLET OPENING.
Claim 2
Dependent Claim
62 words
THE COMBINATION OF A REACTION JET HOUSING HAVING A WATERFLOW PASSAGEWAY INCLUDING AN INLET OPENING AND AN OUTLET OPENING, A ROTOR IN SAID PASSAGEWAY INTERMEDIATE SAID INLET AND OUTLET OPENINGS, AND CONDUIT MEANS SEPARATE FROM SAID PASSAGEWAY AFFORDING COMMUNICATING BETWEEN SAID OUTLET OPENING AND SAID INLET OPENING TO PROVIDE A SCAVENGING FLOW OF WATER FROM SAID OUTLET OPENING TO SAID INLET OPENING.
References Cited (Backward Citations)
US141039A
Cited
US2757650A
Cited
US2976834A
Cited
US3041831A
Cited
US3030909A
Cited
US3055331A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |