Patent US3212834A successfully refreshed from Google Patents.
US3212834A
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Zirconium boride bearing
Assignee: Motors Liquidation Co
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Filing: 1962-12-04
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Granted: 1965-10-19
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Expires: 1982-12-04
Abstract
No abstract record available.
Inventors
- 👤 William J Mayer
- 👤 Walter H Lange
- 👤 Jr Thomas Turner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:16
CPC Classifications
C; C23; C23C; C23C8/00; C23C8/60; C23C8/62; C23C8/68; F; F16; F16C; F16C33/00; F16C33/30; F16C33/58; F16C33/62; F16C2206/00; F16C2206/40; Y; Y10; Y10S; Y10S384/00; Y10S384/90; Y10S384/913
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
25 words
IN A ROLLER CONTACT BEARING ASSEMBLY, A BEARING ELEMENT COMPRISING A BODY OF ZIRCONIUM METAL HAVING A THIN TIGHTLY ADHERENT SURFACE LAYER OF ZIRCONIUM DIBORIDE.
Claim 2
Dependent Claim
25 words
IN A ROLLER CONTACT BEARING ASSEMBLY, A BEARING ELEMENT COMPRISING A BODY OF ZIRCONIUM METAL HAVING A THIN TIGHTLY ADHERENT SURFACE LAYER OF ZIRCONIUM DIBORIDE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-18 | 1969-04-19 | 1969-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-18 | 1973-04-19 | 1973-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-18 | 1977-04-19 | 1977-10-19 | $7700.00 | Window Closed / Lapsed |