Patent US3155441A successfully refreshed from Google Patents.
US3155441A
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Method of making a teflon bearing
Assignee: Motors Liquidation Co
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Filing: 1961-11-15
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Granted: 1964-11-03
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Expires: 1981-11-15
Abstract
No abstract record available.
Inventors
- 👤 Richard W Bemmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:33
CPC Classifications
B; B22; B22F; B22F3/00; B22F3/24; B22F3/26; F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/20; F16C33/201; Y; Y10; Y10S; Y10S277/00; Y10S277/935; Y10S277/944; Y10S277/945; Y10S277/946; Y10S384/00; Y10S384/90; Y10S384/902; Y10T; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49643; Y10T29/49647; Y10T29/49668; Y10T29/4967
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
THE PROCESS FOR MAKING A BEARING HAVING A TEFLON BEARING SURFACE AND A POROUS METAL BACKING, THE STEPS COMPRISING: FORMING A POROUS METAL BEARING MEMBER, TREATING THE SURFACE THEREOF WITH A TEFLON ENAMEL, HEATING THE BEARING WITH THE TEFLON ENAMEL THEREON TO A TEMPERATURE IN THE ORDER OF 750*F. FOR HARDENING THE TEFLON, TREATING
Claim 2
Dependent Claim
54 words
THE PROCESS FOR MAKING A BEARING HAVING A TEFLON BEARING SURFACE AND A POROUS METAL BACKING, THE STEPS COMPRISING: FORMING A POROUS METAL BEARING MEMBER, TREATING THE SURFACE THEREOF WITH A TEFLON ENAMEL, HEATING THE BEARING WITH THE TEFLON ENAMEL THEREON TO A TEMPERATURE IN THE ORDER OF 750*F. FOR HARDENING THE TEFLON, TREATING
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) | 1967-11-03 | 1968-05-04 | 1968-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-03 | 1972-05-04 | 1972-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-03 | 1976-05-04 | 1976-11-03 | $7700.00 | Window Closed / Lapsed |