US2831552A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-energizing multiple disc brake and mechanical operating means therefor
Assignee: Lambert Brake Corp
•
Filing: 1954-03-01
•
Granted: 1958-04-22
•
Expires: 1974-03-01
Abstract
No abstract record available.
Inventors
- 👤 Osborn A Kershner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 02:06
CPC Classifications
F; F16; F16D; F16D55/00; F16D55/02; F16D55/04; F16D55/14; F16D2125/00; F16D2125/18; F16D2125/20; F16D2125/34; F16D2125/36
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-21 | 1961-10-21 | 1962-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-21 | 1965-10-21 | 1966-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-21 | 1969-10-21 | 1970-04-22 | $7700.00 | Window Closed / Lapsed |