US2618368A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic clutch
Assignee: Individual
•
Filing: 1948-09-29
•
Granted: 1952-11-18
•
Expires: 1968-09-29
Abstract
No abstract record available.
Inventors
- 👤 Vaino A Hoover
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:56
CPC Classifications
F; F16; F16D; F16D27/00; F16D27/02; F16D27/04; F16D27/08; F16D48/00; F16D48/06; F16D48/064; F16D2027/008; F16D2500/00; F16D2500/10; F16D2500/102; F16D2500/1021; F16D2500/1022
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US859523A
Cited
US1446225A
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US1925956A
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US2448879A
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US2267114A
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US2401003A
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US2430174A
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US2481028A
Cited
US2533480A
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US2421949A
Cited
US2438223A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-18 | 1956-05-19 | 1956-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-18 | 1960-05-19 | 1960-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-18 | 1964-05-19 | 1964-11-18 | $7700.00 | Window Closed / Lapsed |