US3390750A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Friction element having a layer of porous sintered metal fibers
Assignee: Borg Warner Corp
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Filing: 1966-10-25
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Granted: 1968-07-02
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Expires: 1986-10-25
Abstract
No abstract record available.
Inventors
- 👤 Clarence E Albertson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:53
CPC Classifications
F; F16; F16D; F16D69/00; F16D69/02; F16D69/025; F16D69/026; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12424; Y10T428/12444; Y10T428/12479; Y10T442/00; Y10T442/30; Y10T442/3382; Y10T442/339
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
A TORQUE TRANSMITTING ELEMENT ADAPTED FOR USE IN A CLUTCH OR BRAKE COMPRISING A RIGID BACKING MEMBER AND AT LEAST ONE WEAR FACING AFFIXED TO SAID BACKING MEMBER, SAID BACKING MEMBER HAVING MEANS THEREON FOR COUPLING SAID CLUTCH OR BRAKE, SAID WEAR FACING COMPRISING A POROUS LAYER OF METAL FIBERS HEAT TREATED SUFFICIENTLY TO SINTER ADJACENT FIBERS DIRECTLY TO ONE ANOTHER.
Claim 2
Dependent Claim
61 words
A TORQUE TRANSMITTING ELEMENT ADAPTED FOR USE IN A CLUTCH OR BRAKE COMPRISING A RIGID BACKING MEMBER AND AT LEAST ONE WEAR FACING AFFIXED TO SAID BACKING MEMBER, SAID BACKING MEMBER HAVING MEANS THEREON FOR COUPLING SAID CLUTCH OR BRAKE, SAID WEAR FACING COMPRISING A POROUS LAYER OF METAL FIBERS HEAT TREATED SUFFICIENTLY TO SINTER ADJACENT FIBERS DIRECTLY TO ONE ANOTHER.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-02 | 1972-01-01 | 1972-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-02 | 1976-01-01 | 1976-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-02 | 1980-01-01 | 1980-07-02 | $7700.00 | Window Closed / Lapsed |