US2581301A
Expired / Lapsed
US
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Antifriction composition
Assignee: Saywell Associates
•
Filing: 1948-07-20
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Granted: 1952-01-01
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Expires: 1968-07-20
Abstract
No abstract record available.
Inventors
- 👤 Lawrence G Saywell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:00
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/20; F16C33/201; F16C2208/00; F16C2208/80; F16C2208/90; Y; Y10; Y10S; Y10S277/00; Y10S277/935; Y10S277/936; Y10S277/939; Y10S277/941; Y10S277/944
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
73 words
A COMPOSITION SERVING TO PROVIDE A LOW FRICTION BEARING SURFACE COMPRISING ESSENTIALLY A THERMALLY SET SYNTHETIC RESIN HAVING DISPERSED THEREIN FINELY DIVIDED SOLIDS SERVING TO REDUCE THE SURFACE FRICTION CHARACTERISTICS OF THE COMPOSITION, THE SOLIDS INCLUDING FLAKED GRAPHITE, FLAKED COPPER, AND FLAKED LEAD, THE RESIN BEING THE MAJOR CONSTITUENT AND THE COPPER AND LEAD BEING PRESENT IN SUBSTANTIALLY EQUAL PROPORTIONS, THE DIVIDED SOLIDS BEING SUBSTANTIALLY SEPARATED FROM DIRECT PHYSICAL ENGAGEMENT BY THE RESIN.
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) | 1954-12-31 | 1955-07-02 | 1956-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-31 | 1959-07-02 | 1960-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-31 | 1963-07-02 | 1964-01-01 | $7700.00 | Window Closed / Lapsed |