US3302725A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable pitch marine propeller
Assignee: Individual
•
Filing: 1965-10-22
•
Granted: 1967-02-07
•
Expires: 1985-10-22
Abstract
No abstract record available.
Inventors
- 👤 Peter F Brimble
- 👤 Joseph F Scheidbach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:57
CPC Classifications
B; B63; B63H; B63H3/00; B63H3/10
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
113 words
A VARIABLE PITCH PROPELLER FOR BEING MOUNTED ON A ROTATING DRIVE SHAFT, SAID PROPELLER INCLUDING THE COMBINATION OF: HUB MEANS HAVING A PASSAGE EXTENDING THERETHROUGH FOR RECEIVING SAID DRIVE SHAFT, SAID HUB MEANS INCLUDING: FIRST AND SECOND MEMBERS POSITIONED TO BE DISPOSED CONCENTRIC ABOUT THE DRIVE SHAFT AND BEING MOVABLE RELATIVE TO EACH OTHER, MOUNTING MEANS ON SAID HUB MEANS, AT LEAST ONE PROPELLER ROTATABLY POSITIONED ON SAID MOUNTING MEANS FOR ROTATING ABOUT A LINE NORMAL TO THE AXIS OF SAID SHAFT TO VARY THE PITCH OF SAID BLADE, PITCH MEANS INTERCONNECTED WITH AT LEAST ONE OF SAID MEMBERS AND MOVABLE BETWEEN A PLURALITY OF STATIONS WHEN THAT MEMBER MOVES, SAID PITCH MEANS
References Cited (Backward Citations)
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Cited
GB512057A
Cited
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Cited
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-06 | 1970-08-08 | 1971-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-06 | 1974-08-08 | 1975-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-06 | 1978-08-08 | 1979-02-07 | $7700.00 | Window Closed / Lapsed |