US3358448A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brake motor
Assignee: MIDBRAKE Corp
•
Filing: 1966-06-27
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Granted: 1967-12-19
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Expires: 1986-06-27
Abstract
No abstract record available.
Inventors
- 👤 Herman M Huffman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:56
CPC Classifications
F; F16; F16D; F16D65/00; F16D65/14; F16D65/16; F16D65/22; B; B60; B60T; B60T11/00; B60T11/10; B60T11/24; B60T17/00; B60T17/18; B60T17/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
IN A BRAKE MOTOR OPERABLE BY EITHER OR BOTH OF TWO INDEPENDENT FLUID-PRESSURE SYSTEMS FOR INCLUDING A CYLINDER HAVING TWO POWER PISTONS AND A FLOATING PISTON THEREBETWEEN, THE FLOATING PISTON HAVING ANNULAR END SEALS TO CONTAIN FLUID UNDER PRESSURE AT OPPOSITE ENDS THEREOF; THE IMPROVEMENT WHICH COMPRISES MEANS DEFINING AN ANNULAR
Claim 2
Dependent Claim
51 words
IN A BRAKE MOTOR OPERABLE BY EITHER OR BOTH OF TWO INDEPENDENT FLUID-PRESSURE SYSTEMS FOR INCLUDING A CYLINDER HAVING TWO POWER PISTONS AND A FLOATING PISTON THEREBETWEEN, THE FLOATING PISTON HAVING ANNULAR END SEALS TO CONTAIN FLUID UNDER PRESSURE AT OPPOSITE ENDS THEREOF; THE IMPROVEMENT WHICH COMPRISES MEANS DEFINING AN ANNULAR
References Cited (Backward Citations)
US2275722A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-18 | 1971-06-19 | 1971-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-18 | 1975-06-19 | 1975-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-18 | 1979-06-19 | 1979-12-19 | $7700.00 | Window Closed / Lapsed |