Patent US1907171A successfully refreshed from Google Patents.
US1907171A
Expired / Lapsed
US
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Clutches for controlling motors
Assignee: Individual
•
Filing: 1931-08-31
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Granted: 1933-05-02
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Expires: 1951-08-31
Abstract
No abstract record available.
Inventors
- 👤 Anderson John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:03
CPC Classifications
F; F16; F16D; F16D48/00; F16D48/02; F16D48/0206; F16D2500/00; F16D2500/10; F16D2500/102; F16D2500/1021; F16D2500/1023; F16D2500/1025; F16D2500/1028; F16D2500/30; F16D2500/314; F16D2500/31493; F16D2500/70; F16D2500/704; F16D2500/70402; F16D2500/70406
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) | 1936-05-01 | 1936-10-31 | 1937-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-05-01 | 1940-10-31 | 1941-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-05-01 | 1944-10-31 | 1945-05-02 | $7700.00 | Window Closed / Lapsed |