US3118527A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Friction element, a clutch facing, and method and apparatus for making same
Assignee: Johns Manville Corp
•
Filing: 1959-04-06
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Granted: 1964-01-21
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Expires: 1979-04-06
Abstract
No abstract record available.
Inventors
- 👤 Lombardy Frank
- 👤 Robert M Lambert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:23
CPC Classifications
F; F16; F16D; F16D69/00; F16D69/02; F16D69/021; F16D69/022; D; D02; D02G; D02G1/00; D02G1/14
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
52 words
IN A METHOD OF MAKING A FRICTION ELEMENT, THE STEPS COMPRISING: CRIMPING WIRE-REINFORCED YARN TO FORM CORRUGATIONS EXTENDING TRANSVERSELY OF THE LONGITUDINAL EXTENT OF SAID YARN; COMPRESSING THE CRIMPED YARN; AND WINDING THE CRIMPED YARN IN CONVOLUTIONS ABOUT AN AXIS GENERALLY PARALLEL TO THE DIMENSION DEFINED BY THE DEPTH OF SAID CORRUGATIONS.
Claim 2
Dependent Claim
52 words
IN A METHOD OF MAKING A FRICTION ELEMENT, THE STEPS COMPRISING: CRIMPING WIRE-REINFORCED YARN TO FORM CORRUGATIONS EXTENDING TRANSVERSELY OF THE LONGITUDINAL EXTENT OF SAID YARN; COMPRESSING THE CRIMPED YARN; AND WINDING THE CRIMPED YARN IN CONVOLUTIONS ABOUT AN AXIS GENERALLY PARALLEL TO THE DIMENSION DEFINED BY THE DEPTH OF SAID CORRUGATIONS.
Claim 3
Dependent Claim
12 words
A FRICTION ELEMENT PRODUCED ACCORDING TO THE METHOD RECITED IN CLAIM 1.
References Cited (Backward Citations)
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Cited
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-01-20 | 1967-07-22 | 1968-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-20 | 1971-07-22 | 1972-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-20 | 1975-07-22 | 1976-01-21 | $7700.00 | Window Closed / Lapsed |