US3301642A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low friction, porous, sintered bearing containing a lead-tellurium alloy
Assignee: LA METALLURGIE FRANCAISE DES POUDRES-METAFRAM
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Filing: 1965-03-17
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Granted: 1967-01-31
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Expires: 1985-03-17
Abstract
No abstract record available.
Inventors
- 👤 Youssef Hassan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:24
CPC Classifications
C; C22; C22C; C22C33/00; C22C33/02; C22C33/0257; C22C33/0278; B; B22; B22F; B22F7/00; B22F7/002; C22C11/00; F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/06; F16C33/12; F16C33/121; F16C33/14; F16C2220/00; F16C2220/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
A LOW FRICTION BEARING MATERIAL OF FINE POROSITY COMPRISING A SINTERED METAL POWDER MIXTURE, THE POWDER MIXTURE COMPRISING 5 TO 40% BY WEIGHT A POWDERED LEADTELLURIUM ALLOY CONTAINING 55 TO 75% BY WEIGHT OF LEAD, AND AT LEAST ONE OTHER POWDERED METAL HAVING A MELTING POINT HIGHER THAN THAT OF THE LEAD-TELLURIUM ALLOY.
Claim 2
Dependent Claim
53 words
A LOW FRICTION BEARING MATERIAL OF FINE POROSITY COMPRISING A SINTERED METAL POWDER MIXTURE, THE POWDER MIXTURE COMPRISING 5 TO 40% BY WEIGHT A POWDERED LEADTELLURIUM ALLOY CONTAINING 55 TO 75% BY WEIGHT OF LEAD, AND AT LEAST ONE OTHER POWDERED METAL HAVING A MELTING POINT HIGHER THAN THAT OF THE LEAD-TELLURIUM ALLOY.
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) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |