US2528678A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Windshield cleaner
Assignee: Productive Inventions Inc
•
Filing: 1945-11-01
•
Granted: 1950-11-07
•
Expires: 1965-11-01
Abstract
No abstract record available.
Inventors
- 👤 John W Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:43
CPC Classifications
B; B60; B60S; B60S1/00; B60S1/02; B60S1/04; B60S1/32; B60S1/34; B60S1/3418; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32606; Y10T403/32951
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1991A
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US249909A
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US431791A
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US712061A
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US1218505A
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US1906915A
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US2193724A
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US2326402A
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US2357280A
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US2376714A
Cited
US2365251A
Cited
US2388089A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-06 | 1954-05-08 | 1954-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-06 | 1958-05-08 | 1958-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-06 | 1962-05-08 | 1962-11-07 | $7700.00 | Window Closed / Lapsed |