Patent US2217841A successfully refreshed from Google Patents.
US1840407A
Expired / Lapsed
US
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Electromechanical wheel drive
Assignee: Individual
•
Filing: 1930-06-12
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Granted: 1932-01-12
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Expires: 1950-06-12
Abstract
No abstract record available.
Inventors
- 👤 Carl A Norman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:27
CPC Classifications
B; B60; B60K; B60K1/00; B60K1/02; B60K7/00; B60K7/0007; B60L; B60L15/00; B60L15/20; B60L15/2036; B60L15/2054; B60L3/00; B60L3/0023; B60L3/0076; B60L50/00; B60L50/50; B60L50/60; B60L50/61; B60L50/62; B60K2007/0038; B60K2007/0069; B60K2007/0084; B60L2220/00; B60L2220/40; B60L2220/46; B60L2240/00; B60L2240/10; B60L2240/36; B60L2240/40; B60L2240/42; B60L2240/421; B60L2240/423; B60L2260/00; B60L2260/20; B60L2260/28; B60L2270/00; B60L2270/10; B60L2270/14; B60L2270/145; Y; Y02; Y02T; Y02T10/00; Y02T10/60; Y02T10/62; Y02T10/64; Y02T10/70; Y02T10/7072; Y02T10/72
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) | 1935-01-11 | 1935-07-13 | 1936-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-01-11 | 1939-07-13 | 1940-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-01-11 | 1943-07-13 | 1944-01-12 | $7700.00 | Window Closed / Lapsed |