Patent US2491356A successfully refreshed from Google Patents.
Patent US3246699A successfully refreshed from Google Patents.
US3246699A
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US
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Propeller
Assignee: Outboard Marine Corp
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Filing: 1964-06-10
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Granted: 1966-04-19
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Expires: 1984-06-10
Abstract
No abstract record available.
Inventors
- 👤 Armin E Jocz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:38
CPC Classifications
B; B63; B63H; B63H1/00; B63H1/02; B63H1/12; B63H1/14; B63H1/20; B63H1/26; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49316; Y10T29/49332
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
A PROPELLER COMPRISING A GENERALLY CYLINDRICAL HUB HAVING A CENTRAL AXIS, A SERIES OF BLADES EACH INCLUDING A BLADE PART EXTENDING FROM SAID HUB, AND A TANG PART EXTENDING IN SAID HUB, SAID TANG PARTS EACH HAVING A CROSS SECTION OF GENERALLY I BEAM SHAPE IN A PLANE CONTAINING THE AXIS OF SAID HUB AND HAVING AT LEAST ONE GROOVE EXTENDING IN THE DIRECTION OF SAID HUB AXIS.
Claim 2
Dependent Claim
68 words
A PROPELLER COMPRISING A GENERALLY CYLINDRICAL HUB HAVING A CENTRAL AXIS, A SERIES OF BLADES EACH INCLUDING A BLADE PART EXTENDING FROM SAID HUB, AND A TANG PART EXTENDING IN SAID HUB, SAID TANG PARTS EACH HAVING A CROSS SECTION OF GENERALLY I BEAM SHAPE IN A PLANE CONTAINING THE AXIS OF SAID HUB AND HAVING AT LEAST ONE GROOVE EXTENDING IN THE DIRECTION OF SAID HUB AXIS.
References Cited (Backward Citations)
US1128854A
Cited
US1212608A
Cited
US1358190A
Cited
GB364002A
Cited
US2332330A
Cited
US3000081A
Cited
US3136370A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-18 | 1969-10-18 | 1970-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-18 | 1973-10-18 | 1974-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-18 | 1977-10-18 | 1978-04-19 | $7700.00 | Window Closed / Lapsed |