Patent US2978729A successfully refreshed from Google Patents.
US2978729A
Expired / Lapsed
US
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Revolving windshield wiper
Assignee: Individual
•
Filing: 1957-04-19
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Granted: 1961-04-11
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Expires: 1977-04-19
Abstract
No abstract record available.
Inventors
- 👤 Pschibul Franz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:15
CPC Classifications
B; B60; B60S; B60S1/00; B60S1/02; B60S1/04; B60S1/0402; B60S1/0405; B60S1/44; Y; Y10; Y10T; Y10T24/00; Y10T24/15; Y10T24/153
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2161682A
Cited
US2235493A
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US2401961A
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US2634447A
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US2641661A
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US2721352A
Cited
US2799039A
Cited
US2759214A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-10 | 1964-10-10 | 1965-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-10 | 1968-10-10 | 1969-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-10 | 1972-10-10 | 1973-04-11 | $7700.00 | Window Closed / Lapsed |