Patent US2639455A successfully refreshed from Google Patents.
US2639455A
Expired / Lapsed
US
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Rotary windshield wiper
Assignee: Individual
•
Filing: 1947-10-03
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Granted: 1953-05-26
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Expires: 1967-10-03
Abstract
No abstract record available.
Inventors
- 👤 Gustav T Schwarzmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:27
CPC Classifications
B; B60; B60S; B60S1/00; B60S1/02; B60S1/54; B60S1/544; B60S1/546; B60S1/04; B60S1/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1650922A
Cited
US1755059A
Cited
US2130957A
Cited
US2181066A
Cited
US2239754A
Cited
US2271225A
Cited
US2268253A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-25 | 1956-11-24 | 1957-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-25 | 1960-11-24 | 1961-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-25 | 1964-11-24 | 1965-05-26 | $7700.00 | Window Closed / Lapsed |