US3153397A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Outboard motor apparatus
Assignee: Individual
•
Filing: 1961-10-30
•
Granted: 1964-10-20
•
Expires: 1981-10-30
Abstract
No abstract record available.
Inventors
- 👤 Roy D Mattson
- 👤 John R Mattson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:22
CPC Classifications
B; B63; B63B; B63B35/00; B63B35/66; B63B35/665; B63H; B63H20/00; B63H20/08; B63H20/10; B63H20/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2213612A
Cited
US2496434A
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US2506884A
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US2627243A
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US2716758A
Cited
US2909146A
Cited
US2969763A
Cited
US3091781A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-10-20 | 1968-04-20 | 1968-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-20 | 1972-04-20 | 1972-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-20 | 1976-04-20 | 1976-10-20 | $7700.00 | Window Closed / Lapsed |