Patent US3452704A successfully refreshed from Google Patents.
US3452704A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Engine mounted on a gimbal-like frame
Assignee: Outboard Marine Corp
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Filing: 1966-07-14
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Granted: 1969-07-01
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Expires: 1986-07-14
Abstract
No abstract record available.
Inventors
- 👤 Lucius D Watkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:48
CPC Classifications
B; B63; B63H; B63H20/00; B63H20/02; B63H20/04; B63H5/00; B63H5/07; B63H5/125
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2441000A
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US2718792A
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US2755766A
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US2976836A
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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) | 1972-06-30 | 1972-12-30 | 1973-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-30 | 1976-12-30 | 1977-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-30 | 1980-12-30 | 1981-07-01 | $7700.00 | Window Closed / Lapsed |