US2030286A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Windshield wiper mechanism
Assignee: E S Evans & Sons
•
Filing: 1934-04-23
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Granted: 1936-02-11
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Expires: 1954-04-23
Abstract
No abstract record available.
Inventors
- 👤 Robert B Evans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:28
CPC Classifications
B; B60; B60S; B60S1/00; B60S1/02; B60S1/04; B60S1/32; B60S1/34; B60S1/3425; B60S1/3427; B60S1/38; B60S1/3848; B60S1/3874; B60S1/3882; B60S2001/3812
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1939-02-10 | 1939-08-12 | 1940-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-02-10 | 1943-08-12 | 1944-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-02-10 | 1947-08-12 | 1948-02-11 | $7700.00 | Window Closed / Lapsed |