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Patent US3231806A successfully refreshed from Google Patents.
US3231806A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric motor control
Assignee: Kiekhaefer Corp
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Filing: 1963-01-21
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Granted: 1966-01-25
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Expires: 1983-01-21
Abstract
No abstract record available.
Inventors
- 👤 Robert C Schmiedel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:10
CPC Classifications
H; H02; H02P; H02P7/00; H02P7/03
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
114 words
A REMOTELY OPERABLE POSITIONING CONTROL FOR AN INBOARD-OUTBOARD WATERCRAFT DRIVE HAVING A PROPULSION UNIT PENDENTLY AND DIRIGIBLY SUPPORTED WITHIN AN OPENING IN THE TRANSOM AND HAVING ROTATING MEANS TO MOVE THE PROPULSION UNIT IN A VERTICAL PLANE, SAID CONTROL COMPRISING, (A) COUPLING MEANS ADAPTED TO BE CONNECTED TO SAID ROTATING MEANS, (B) STOP MEANS ADAPTED TO LIMIT THE ROTATION OF SAID PROPULSION UNIT IN THE VERTICAL PLANE, (C) A SERIES WOUND MOTOR HAVING A FIELD WINDING AND AN ARMATURE COUPLED TO ACTUATE SAID COUPLING MEANS FOR ROTATING THE PROPULSION UNIT, (D) AN ELECTRORESPONSIVE SWITCH CONNECTED IN CIRCUIT WITH SAID FIELD WINDING AND ADAPTED TO COMPLETE A POWER CIRCUIT THERETO, SAID SWITCH HAVING A SELECTED
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) | 1969-01-24 | 1969-07-26 | 1970-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-24 | 1973-07-26 | 1974-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-24 | 1977-07-26 | 1978-01-25 | $7700.00 | Window Closed / Lapsed |