US3339221A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intermittent windshield wiper systems
Assignee: Individual
•
Filing: 1965-03-11
•
Granted: 1967-09-05
•
Expires: 1985-03-11
Abstract
No abstract record available.
Inventors
- 👤 Morris B Wood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:09
CPC Classifications
B; B60; B60S; B60S1/00; B60S1/02; B60S1/46; B60S1/48; B60S1/481; B60S1/482
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A WINDSHIELD CLEANER HAVING A WIPER, A MOTOR FOR OPERATING THE WIPER IN SUCCESSIVE CYCLES, AND AN ELECTRICAL CIRCUIT FOR THE MOTOR, IN COMBINATION WITH VARIABLE RATE TIMING MEANS INCLUDING A BIMETALLIC STRIP FLEXED BOTH BY HEAT FROM THE CURRENT CONSUMED BY THE MOTOR AND BY MECHANICAL FORCE DERIVED FROM THE MOTOR DURING EACH CYCLE OF WIPER OPERATION TO OPEN THE CIRCUIT TO THE MOTOR FOR A LONGER PERIOD OF TIME WHEN THE MOTOR CURRENT IS HIGHER AND FOR A SHORTER PERIOD TO TIME WHEN THE CURRENT IS LOWER.
Claim 2
Dependent Claim
89 words
A WINDSHIELD CLEANER HAVING A WIPER, A MOTOR FOR OPERATING THE WIPER IN SUCCESSIVE CYCLES, AND AN ELECTRICAL CIRCUIT FOR THE MOTOR, IN COMBINATION WITH VARIABLE RATE TIMING MEANS INCLUDING A BIMETALLIC STRIP FLEXED BOTH BY HEAT FROM THE CURRENT CONSUMED BY THE MOTOR AND BY MECHANICAL FORCE DERIVED FROM THE MOTOR DURING EACH CYCLE OF WIPER OPERATION TO OPEN THE CIRCUIT TO THE MOTOR FOR A LONGER PERIOD OF TIME WHEN THE MOTOR CURRENT IS HIGHER AND FOR A SHORTER PERIOD TO TIME WHEN THE CURRENT IS LOWER.
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) | 1970-09-04 | 1971-03-06 | 1971-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-04 | 1975-03-06 | 1975-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-04 | 1979-03-06 | 1979-09-05 | $7700.00 | Window Closed / Lapsed |