US2906007A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sintered bearing composition
Assignee: Saint Gobain Abrasives Inc
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Filing: 1956-12-21
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Granted: 1959-09-29
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Expires: 1976-12-21
Abstract
No abstract record available.
Inventors
- 👤 Gareth L Bibbins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:50
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/71; C04B35/74; C04B35/76; C04B35/515; C04B35/58; C04B35/583; F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/043
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
A SINTERED BEARING COMPOSITION CONSISTING ESSENTIALLY OF BORON NITRIDE AND METAL, THE BORON NITRIDE BEING PRESENT IN FROM 10% TO 60% BY VOLUME, AT LEAST 90% BY VOLUME OF SAID BORON NITRIDE HAVING A PARTICLE SIZE OF LESS THAN 100 MICRONS, FROM 25% TO 90% BY VOLUME OF SAID COMPOSITION BEING METAL FIBERS HAVING A MELTING POINT OF ABOVE 200*C., SAID METAL FIBERS HAVING AN AVERAGE DIAMETER OF BETWEEN 0.1 AND 5 MILS AND A LENGTH TO DIAMETER RATIO NOT MORE THAN 250 TO 1 AND OF AT LEAST 5 TO 1 FOR AT LEAST 90% BY VOLUME OF THE FIBERS.
Claim 2
Dependent Claim
101 words
A SINTERED BEARING COMPOSITION CONSISTING ESSENTIALLY OF BORON NITRIDE AND METAL, THE BORON NITRIDE BEING PRESENT IN FROM 10% TO 60% BY VOLUME, AT LEAST 90% BY VOLUME OF SAID BORON NITRIDE HAVING A PARTICLE SIZE OF LESS THAN 100 MICRONS, FROM 25% TO 90% BY VOLUME OF SAID COMPOSITION BEING METAL FIBERS HAVING A MELTING POINT OF ABOVE 200*C., SAID METAL FIBERS HAVING AN AVERAGE DIAMETER OF BETWEEN 0.1 AND 5 MILS AND A LENGTH TO DIAMETER RATIO NOT MORE THAN 250 TO 1 AND OF AT LEAST 5 TO 1 FOR AT LEAST 90% BY VOLUME OF THE FIBERS.
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) | 1962-09-28 | 1963-03-30 | 1963-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-28 | 1967-03-30 | 1967-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-28 | 1971-03-30 | 1971-09-29 | $7700.00 | Window Closed / Lapsed |