Patent US3247541A successfully refreshed from Google Patents.
US3247541A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Windshield wiper
Assignee: SWF Auto Electric GmbH
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Filing: 1964-06-26
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Granted: 1966-04-26
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Expires: 1984-06-26
Abstract
No abstract record available.
Inventors
- 👤 Hans C Deutscher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:56
CPC Classifications
B; B60; B60S; B60S1/00; B60S1/02; B60S1/04; B60S1/32; B60S1/34; B60S1/3425; B60S1/3445; B60S1/3459
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
124 words
A WIPER ARM UNIT FOR A WINDSHIELD WIPER ARRANGEMENT FOR A WINDSHIELD COMPRISING: A DRIVE SHAFT AND A HEAD MEMBER HAVING A SOCKET-LIKE APERTURE ENGAGING SAID DRIVE SHAFT, A WIPER ARM PIVOTALLY CONNECTED TO SAID HEAD MEMBER FOR CARRYING A WIPER BLADE, SAID WIPER ARM BEING PIVOTAL FROM AN OPERATIVE POSITION IN WHICH SAID WIPER BLADE ENGAGES WITH A WINDSHIELD TO AN INOPERATIVE POSITION AWAY FROM SAID WINDSHIELD, AND COIL SPRING MEANS FOR BIASING SAID WIPER ARM TO PRESS THE WIPER BLADE AGAINST SAID WINDSHIELD AND SIMULTANEOUSLY LOCKING SAID HEAD MEMBER ON SAID DRIVE SHAFT IN SAID OPERATIVE POSITION, INCLUDING, AS AN INTEGRAL UNIT, A COIL SPRING, HAVING ONE END CONNECTED TO SAID HEAD MEMBER, AND A PROJECTING END PORTION OF SAID COIL SPRING.
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) | 1969-04-25 | 1969-10-25 | 1970-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-25 | 1973-10-25 | 1974-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-25 | 1977-10-25 | 1978-04-26 | $7700.00 | Window Closed / Lapsed |