Patent US3018750A successfully refreshed from Google Patents.
US3018750A
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US
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Mercury switch control for electrically governed rudder
Assignee: Individual
•
Filing: 1958-05-02
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Granted: 1962-01-30
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Expires: 1978-05-02
Abstract
No abstract record available.
Inventors
- 👤 Arthur D Hill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:35
CPC Classifications
H; H01; H01H; H01H9/00; H01H9/02; H01H9/06; H01H29/00; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20012; Y10T74/20201
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1587523A
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US2068065A
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US2138279A
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US2191339A
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US2400400A
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US2498223A
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US2796576A
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US2776443A
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US2914018A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-29 | 1965-07-31 | 1966-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-29 | 1969-07-31 | 1970-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-29 | 1973-07-31 | 1974-01-30 | $7700.00 | Window Closed / Lapsed |