US3520385A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disc brake with torsion spring operated,self-adjusting means
Assignee: Midland Ross Corp
•
Filing: 1968-11-01
•
Granted: 1970-07-14
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Expires: 1988-11-01
Abstract
No abstract record available.
Inventors
- 👤 Herman M Huffman
- 👤 John A Beckman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:00
CPC Classifications
F; F16; F16D; F16D65/00; F16D65/38; F16D65/40; F16D65/52; F16D65/56; F16D65/567; F16D65/14; F16D65/16; F16D65/18; F16D65/78; F16D2065/789; F16D2121/00; F16D2121/02; F16D2123/00; F16D2125/00; F16D2125/02; F16D2125/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2497438A
Cited
CH275683A
Cited
US3255851A
Cited
DE1211875B
Cited
US3269490A
Cited
US3378109A
Cited
US3417843A
Cited
US3410373A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-13 | 1974-01-12 | 1974-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-13 | 1978-01-12 | 1978-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-13 | 1982-01-12 | 1982-07-14 | $7700.00 | Window Closed / Lapsed |