Patent US2678029A successfully refreshed from Google Patents.
US2678029A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Windshield wiper motor
Assignee: Sprague Devices Inc
•
Filing: 1948-10-23
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Granted: 1954-05-11
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Expires: 1968-10-23
Abstract
No abstract record available.
Inventors
- 👤 Sprague Frank
- 👤 Elton F Nichols
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:37
CPC Classifications
B; B60; B60S; B60S1/00; B60S1/02; B60S1/04; B60S1/06; B60S1/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2224708A
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US899999A
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US1834607A
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US2246535A
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US2264658A
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US2415607A
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US2385084A
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US2594856A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-10 | 1957-11-09 | 1958-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-10 | 1961-11-09 | 1962-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-10 | 1965-11-09 | 1966-05-11 | $7700.00 | Window Closed / Lapsed |