Patent US3386308A successfully refreshed from Google Patents.
US3386308A
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Boat controllers
Assignee: MAURICE H BUTLER
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Filing: 1966-01-03
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Granted: 1968-06-04
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Expires: 1986-01-03
Abstract
No abstract record available.
Inventors
- 👤 Maurice H Butler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:04
CPC Classifications
B; B63; B63H; B63H25/00; B63H25/06; B63H25/08; B63H25/10; B63H25/02; B63H2025/026; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20207; Y10T74/20213; Y10T74/20232; Y10T74/20576; Y10T74/20582; Y10T74/20612; Y10T74/20624; Y10T74/20732; Y10T74/20834; Y10T74/20864
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-04 | 1971-12-04 | 1972-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-04 | 1975-12-04 | 1976-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-04 | 1979-12-04 | 1980-06-04 | $7700.00 | Window Closed / Lapsed |