US3120102A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tubular type gate
Assignee: Buehler Corp
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Filing: 1962-01-22
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Granted: 1964-02-04
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Expires: 1982-01-22
Abstract
No abstract record available.
Inventors
- 👤 Donald L Howard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:44
CPC Classifications
B; B63; B63H; B63H11/00; B63H11/02; B63H11/10; B63H11/107; B63H11/11
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
127 words
A DIRECTION CONTROL SYSTEM FOR WATERCRAFT COMPRISING A CONDUIT MOUNTED ON THE CRAFT AND HAVING A STRAIGHT CAVITY WITH AN EXIT OPENING REARWARDLY THEREOF, MEANS FOR PUMPING WATER THROUGH SAID CONDUIT TO EXHAUST IN A JET FROM SAID EXIT, SAID CONDUIT HAVING A VERTICALLY EXTENDING CYLINDRICAL HOLLOW INTERIOR ADJACENT ITS EXIT AND INTERSECTING SAID STRAIGHT CAVITY, SAID VERTICALLY EXTENDING HOLLOW INTERIOR EXTENDING ABOVE AND BELOW SAID CAVITY AND HAVING A CLOSED UPPER END AND AN OPEN LOWER END, A CYLINDRICAL GATE VERTICALLY RECIPROCAL WITHIN SAID CYLINDRICAL HOLLOW INTERIOR, SAID GATE BEING VERTICALLY MOVABLE BETWEEN THREE POSITIONS IN A FIRST OF WHICH SAID GATE IS RECEIVED IN THE UPPER PORTION OF SAID INTERIOR ABOVE SAID CAVITY SO THAT THE WATER FROM SAID PUMPING MEANS PASSES THROUGH SAID IN-
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) | 1967-02-03 | 1967-08-05 | 1968-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-02-03 | 1971-08-05 | 1972-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-02-03 | 1975-08-05 | 1976-02-04 | $7700.00 | Window Closed / Lapsed |