US3444932A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seal arrangements for marine propellers
Assignee: Outboard Marine Corp
•
Filing: 1967-08-17
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Granted: 1969-05-20
•
Expires: 1987-08-17
Abstract
No abstract record available.
Inventors
- 👤 Richard A Wlezien
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:15
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/54; B; B63; B63H; B63H23/00; B63H23/32; B63H23/36
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2669938A
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US2765040A
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FR1135402A
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US3138136A
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US3228482A
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US3232186A
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US3253660A
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US3246698A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-19 | 1972-11-18 | 1973-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-19 | 1976-11-18 | 1977-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-19 | 1980-11-18 | 1981-05-20 | $7700.00 | Window Closed / Lapsed |