US2856901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Windshield wiper motor
Assignee: K & T Engineering & Developing
•
Filing: 1954-05-19
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Granted: 1958-10-21
•
Expires: 1974-05-19
Abstract
No abstract record available.
Inventors
- 👤 Alfred T Kvarnstrom
- 👤 William J Tomlinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:45
CPC Classifications
B; B60; B60S; B60S1/00; B60S1/02; B60S1/46; B60S1/48; B60S1/04; B60S1/32; B60S1/34; B60S1/3415; B60S1/50; B60S1/52; B60S1/522
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2173021A
Cited
US2397599A
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US2372813A
Cited
US2458260A
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US2572750A
Cited
US2538344A
Cited
US2574504A
Cited
US2639455A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-20 | 1962-04-21 | 1962-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-20 | 1966-04-21 | 1966-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-20 | 1970-04-21 | 1970-10-21 | $7700.00 | Window Closed / Lapsed |