US2536136A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Molded friction linings
Assignee: Motors Liquidation Co
•
Filing: 1947-01-10
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Granted: 1951-01-02
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Expires: 1967-01-10
Abstract
No abstract record available.
Inventors
- 👤 David E Lucid
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:29
CPC Classifications
F; F16; F16D; F16D69/00; F16D69/02; F16D69/021; F16D69/022
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
A HEAT CURED MOLDED FRICTION ELEMENT COMPRISING A FRICTIONAL FILLER, A MAIN BINDER OF OILMODIFIED PHENOL-FORMALDEHYDE RESIN SOLIDS WITH INDIVIDUAL CURING AGENTS THEREFOR, AND AN AUXILIARY BINDER OF OIL-SOLUBLE SYNTHETIC RUBBER SOLIDS WITH INDIVIDUAL CURING AGENTS THEREFOR, THE RATIO BY WEIGHT OF SAID RESIN SOLIDS TO RUBBER SOLIDS BEING FROM APPROXIMATELY 1 TO 1 TO 7 TO 1.
Claim 2
Dependent Claim
58 words
A HEAT CURED MOLDED FRICTION ELEMENT COMPRISING A FRICTIONAL FILLER, A MAIN BINDER OF OILMODIFIED PHENOL-FORMALDEHYDE RESIN SOLIDS WITH INDIVIDUAL CURING AGENTS THEREFOR, AND AN AUXILIARY BINDER OF OIL-SOLUBLE SYNTHETIC RUBBER SOLIDS WITH INDIVIDUAL CURING AGENTS THEREFOR, THE RATIO BY WEIGHT OF SAID RESIN SOLIDS TO RUBBER SOLIDS BEING FROM APPROXIMATELY 1 TO 1 TO 7 TO 1.
References Cited (Backward Citations)
US2114121A
Cited
US2369583A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-01 | 1954-07-03 | 1955-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-01 | 1958-07-03 | 1959-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-01 | 1962-07-03 | 1963-01-02 | $7700.00 | Window Closed / Lapsed |