Patent US3119640A successfully refreshed from Google Patents.
US3119640A
Expired / Lapsed
US
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Bearings
Assignee: Callaway Mills Co
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Filing: 1962-06-22
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Granted: 1964-01-28
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Expires: 1982-06-22
Abstract
No abstract record available.
Inventors
- 👤 David J Laudig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:06
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; B; B61; B61F; B61F15/00; B61F15/02; F16C2326/00; F16C2326/10; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12028; Y10T428/12063; Y10T428/1209; Y10T428/12104; Y10T428/12111; Y10T428/12139
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
IN A NORMALLY LUBRICATED RAILWAY JOURNAL BEARING OF THE TYPE HAVING A METAL BACK, THE IMPROVEMENT WHICH COMPRISES A POROUS LINING BONDED TO SAID BACK HAVING A HARDNESS IN THE RANGE OF FROM ROCKWELL L-80 TO L-95, AND SAID LINING BEING FORMED FROM A SINTERED MIXTURE CONTAINING FROM 15 TO 25% BY VOLUME OF PERFLUOROCARBON RESIN, FROM 20 TO 60% BY VOLUME OF A FIRST METALLIC COMPONENT CONTAINING A MAJOR AMOUNT OF LEAD AND HAVING A MELTING POINT NO LOWER THAN 350* F. AND NO HIGHER THAN
Claim 2
Dependent Claim
87 words
IN A NORMALLY LUBRICATED RAILWAY JOURNAL BEARING OF THE TYPE HAVING A METAL BACK, THE IMPROVEMENT WHICH COMPRISES A POROUS LINING BONDED TO SAID BACK HAVING A HARDNESS IN THE RANGE OF FROM ROCKWELL L-80 TO L-95, AND SAID LINING BEING FORMED FROM A SINTERED MIXTURE CONTAINING FROM 15 TO 25% BY VOLUME OF PERFLUOROCARBON RESIN, FROM 20 TO 60% BY VOLUME OF A FIRST METALLIC COMPONENT CONTAINING A MAJOR AMOUNT OF LEAD AND HAVING A MELTING POINT NO LOWER THAN 350* F. AND NO HIGHER THAN
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) | 1967-01-27 | 1967-07-29 | 1968-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-27 | 1971-07-29 | 1972-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-27 | 1975-07-29 | 1976-01-28 | $7700.00 | Window Closed / Lapsed |