US2426421A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Friction element assembly
Assignee: Foster D Snell Inc
•
Filing: 1942-05-02
•
Granted: 1947-08-26
•
Expires: 1962-05-02
Abstract
No abstract record available.
Inventors
- 👤 Sydney G Tilden
- 👤 Snell Foster Dee
- 👤 Jacob M Fain
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:31
CPC Classifications
F; F16; F16D; F16D69/00; F16D69/02; F16D69/021; F16D69/022; Y; Y10; Y10T; Y10T442/00; Y10T442/10; Y10T442/102; Y10T442/172; Y10T442/176
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2191362A
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US2138876A
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US2137465A
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US2233090A
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US2255901A
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US2272532A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-08-25 | 1951-02-24 | 1951-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-08-25 | 1955-02-24 | 1955-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-08-25 | 1959-02-24 | 1959-08-26 | $7700.00 | Window Closed / Lapsed |