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US3585102A Expired / Lapsed US ⏱️ 0.0 years remaining

Rapid seating friction elements

Assignee: Individual
•
Filing: 1968-08-07
•
Granted: 1971-06-15
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Expires: 1988-08-07
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Abstract

Abstract NOVEL COMPOSITION FRICTION ELEMENTS ARE DISCLOSED HAVING THE ABILITY TO QUICKLY SEAT-IN AND CONFORM TO THE CONTOUR OF AN IRREGULAR BRAKING SURFACE WITHOUT FADING OR SACRIFICING BRAKING LIFE. THE NOVEL ELEMENTS COMPRISE A BASE OF CONVENTIONAL FRICTION MATERIAL HAVING A FRICTIONAL CONTACTING SURFACE TREATED WITH A SECOND FRICTION MATERIAL HAVING A HIGHER COEFFICIENT OF FRICTION AND A LOWER RESISTANCE TO WEAR THAN THE BASE MATERIAL.

Inventors

  • 👤 Bernard Lee Burgess

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 08:51
CPC Classifications
F; F16; F16D; F16D69/00; F16D69/02; F16D69/021; F16D69/022; F16D2069/002; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24372; Y10T428/24405; Y10T428/24413; Y10T428/25; Y10T428/256

Claims Analysis

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References Cited (Backward Citations)

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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) 1974-06-14 1974-12-14 1975-06-15 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-06-14 1978-12-14 1979-06-15 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-06-14 1982-12-14 1983-06-15 $7700.00 Window Closed / Lapsed

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