Patent US2684258A successfully refreshed from Google Patents.
US2684258A
Expired / Lapsed
US
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Windshield wiper arm
Assignee: Productive Inventions Inc
•
Filing: 1950-03-23
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Granted: 1954-07-20
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Expires: 1970-03-23
Abstract
No abstract record available.
Inventors
- 👤 Fred A Krohm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:08
CPC Classifications
B; B60; B60S; B60S1/00; B60S1/02; B60S1/04; B60S1/32; B60S1/34; B60S1/3418; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32008; Y10T403/32114; Y10T403/32188; Y10T403/32254; Y10T403/32426
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2345910A
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US2317245A
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US2299280A
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US2350134A
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US2417991A
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US2449357A
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US2404523A
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US2499809A
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US2528678A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-07-19 | 1958-01-18 | 1958-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-07-19 | 1962-01-18 | 1962-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-07-19 | 1966-01-18 | 1966-07-20 | $7700.00 | Window Closed / Lapsed |