US3564375A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control system for electric windshield wipers having dynamic braking defined by short circuit
Assignee: Industrie Magneti Marelli SRL
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Filing: 1967-10-24
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Granted: 1971-02-16
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Expires: 1987-10-24
Abstract
Abstract A WINDSHIELD WIPER CONTROL SYSTEM OF MOTOR VEHICLES COMPRISES MEMBERS PROVIDED FOR THE ELECTRIC BRAKING OF THE OPERATING MOTOR INCLUDING SWITCHES, CONTROLLED BY A MANUAL CHANGE-OVER SWITCH WHICH CONTROLS THE OPERATION OF AN ELECTRIC MOTOR. IN THE CASE OF MOTORS OF THE PERMA- NENT MAGNET EXCITATION-TYPE THE ELECTRIC BRAKING IS OBTAINED BY SHORT CIRCUITING THE ROTOR OF THE MOTOR.
Inventors
- 👤 Eugenio Allaria
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:23
CPC Classifications
B; B60; B60S; B60S1/00; B60S1/02; B60S1/04; B60S1/06; B60S1/08; B60S1/0803
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |