US2964137A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brake structure
Assignee: RH Stearns and Co
•
Filing: 1957-11-20
•
Granted: 1960-12-13
•
Expires: 1977-11-20
Abstract
No abstract record available.
Inventors
- 👤 William G Luedtke
- 👤 Bernard E Wrensch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:31
CPC Classifications
F; F16; F16D; F16D55/00; F16D55/24; F16D55/26; F16D55/36; F16D65/00; F16D65/02; F16D65/12; F16D65/125; F16D65/126; F16D65/78; F16D65/84; F16D2055/0004; F16D2055/0058
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1347785A
Cited
US698112A
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US1947091A
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US2059244A
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US2163884A
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US2142174A
Cited
US2217464A
Cited
US2314227A
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US2368317A
Cited
US2518016A
Cited
US2620901A
Cited
US2821271A
Cited
US2801714A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-13 | 1964-06-13 | 1964-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-13 | 1968-06-13 | 1968-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-13 | 1972-06-13 | 1972-12-13 | $7700.00 | Window Closed / Lapsed |