Patent US2060437A successfully refreshed from Google Patents.
US2060437A
Expired / Lapsed
US
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Electric motor control
Assignee: Individual
•
Filing: 1934-09-04
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Granted: 1936-11-10
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Expires: 1954-09-04
Abstract
No abstract record available.
Inventors
- 👤 Harley Stanley Jaffa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:37
CPC Classifications
H; H02; H02P; H02P7/00; H02P7/06; H02P7/18; H02P7/20; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5179; Y10T408/00; Y10T408/05; Y10T82/00; Y10T82/25; Y10T82/2552; Y10T82/2554; Y10T82/2556
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) | 1939-11-10 | 1940-05-11 | 1940-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-11-10 | 1944-05-11 | 1944-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-11-10 | 1948-05-11 | 1948-11-10 | $7700.00 | Window Closed / Lapsed |