Patent US3820188A successfully refreshed from Google Patents.
US3820188A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Windshield wiper blade structure
Assignee: Anderson Company of Indiana
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Filing: 1973-02-01
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Granted: 1974-06-28
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Expires: 1993-02-01
Abstract
Abstract A WINDSHIELD WIPER ASSEMBLY FOR A CURVED WINDSHIELD, INCLUDING A PRESSURE DISTRIBUTING SUPERSTRUCTURE HAVING CLAWS ADAPTED TO ENGAGE A BLADE STRUCTURE AT LONGITUDINALLY SPACED POSITIONS, TOGETHER WITH A BLADE STRUCTURE INCLUDING A FLEXIBLE HOLDER HAVING A PAIR OF LATERALLY OPENING SLOTS FOR RECEIVING THE CLAWS OF THE SUPERSTRUCTURE, AND A LONGITUDINAL RETENTION CHAMBER RECEIVING AN ENLARGED RETENTION BEAD ALONG THE UPPER EDGE OF A RESILIENT WIPING ELEMENT.
Inventors
- 👤 J Moorhead
- 👤 D Stratton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 03:31
CPC Classifications
B; B60; B60S; B60S1/00; B60S1/02; B60S1/04; B60S1/32; B60S1/38; B60S1/3801; B60S2001/3812; B60S2001/3817; B60S2001/3818; B60S2001/3827; B60S2001/3836
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) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-27 | 1981-12-27 | 1982-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-27 | 1985-12-27 | 1986-06-28 | $7700.00 | Window Closed / Lapsed |