US2619212A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clutch or brake with flexible backing disks
Assignee: CARDWELL Mfg CO Inc
•
Filing: 1948-03-10
•
Granted: 1952-11-25
•
Expires: 1968-03-10
Abstract
No abstract record available.
Inventors
- 👤 Harland W Cardwell
- 👤 Earl R Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:27
CPC Classifications
F; F16; F16D; F16D25/00; F16D25/04; F16D25/042; F16D25/044; F16D55/00; F16D55/02; F16D55/04; F16D55/06; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/2937; Y10T137/294
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US427085A
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FR372825A
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US1048299A
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US1698011A
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US1482661A
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US2074738A
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US2251443A
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US2267650A
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US2254074A
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US2267263A
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US2354389A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-25 | 1956-05-26 | 1956-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-25 | 1960-05-26 | 1960-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-25 | 1964-05-26 | 1964-11-25 | $7700.00 | Window Closed / Lapsed |