Patent US1566848A successfully refreshed from Google Patents.
Patent US2738864A successfully refreshed from Google Patents.
US2738864A
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Clutch belleville spring type
Assignee: Borg Warner Corp
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Filing: 1951-08-18
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Granted: 1956-03-20
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Expires: 1971-08-18
Abstract
No abstract record available.
Inventors
- 👤 Sylvan J Becker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:53
CPC Classifications
F; F16; F16D; F16D13/00; F16D13/58; F16D13/60; F16D13/64; F16D13/69; F16D13/22; F16D13/38; F16D13/52; F16D25/00; F16D25/12; F16D2300/00; F16D2300/14; F16D25/06; F16D25/062; F16D25/063; F16D25/0635; F16D25/0638
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-20 | 1959-09-19 | 1960-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-20 | 1963-09-19 | 1964-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-20 | 1967-09-19 | 1968-03-20 | $7700.00 | Window Closed / Lapsed |