Patent US3054490A successfully refreshed from Google Patents.
US3054490A
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Electromagnetic friction device
Assignee: Borg Warner Corp
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Filing: 1958-06-27
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Granted: 1962-09-18
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Expires: 1978-06-27
Abstract
No abstract record available.
Inventors
- 👤 Glen R Harting
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:35
CPC Classifications
F; F16; F16D; F16D27/00; F16D27/10; F16D27/108; F16D27/112
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1746365A
Cited
US2107954A
Cited
US2267114A
Cited
GB575996A
Cited
US2580869A
Cited
US2738044A
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US2684744A
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US2753032A
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US2765891A
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US2808917A
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US2844230A
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US2801719A
Cited
US2739684A
Cited
US2919776A
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US2853291A
Cited
US3007561A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-17 | 1966-03-19 | 1966-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-17 | 1970-03-19 | 1970-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-17 | 1974-03-19 | 1974-09-18 | $7700.00 | Window Closed / Lapsed |