US2887765A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sintered powdered copper base bearing
Assignee: Motors Liquidation Co
•
Filing: 1954-07-19
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Granted: 1959-05-26
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Expires: 1974-07-19
Abstract
No abstract record available.
Inventors
- 👤 Robert F Thomson
- 👤 Eric W Weinman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:34
CPC Classifications
C; C22; C22C; C22C9/00; C22C9/01; F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/06; F16C33/12; F16C33/121
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
A HIGHLY WEAR-RESISTANT SINTERED COPPER BASE BEAR ING FORMED FROM A POWDER METAL MIXTURE CONSISTING ESSENTIALLY OF 1% TO 18% TIN, 2% TO 15% NICKEL, 0.5% TO 25% DISPERSED PARTICLES OF TITANIUM-ALUMINUM ALLOY COMPRISING ABOUT 30% TO 90% TITANIUM AND 10% TO 70% ALUMINUM, AND THE BALANCE SUBSTANTIALLY ALL A METAL POWDER SELECTED FROM THE CLASS CONSISTING OF COPPER AND COPPER BASE ALLOYS.
Claim 2
Dependent Claim
63 words
A HIGHLY WEAR-RESISTANT SINTERED COPPER BASE BEAR ING FORMED FROM A POWDER METAL MIXTURE CONSISTING ESSENTIALLY OF 1% TO 18% TIN, 2% TO 15% NICKEL, 0.5% TO 25% DISPERSED PARTICLES OF TITANIUM-ALUMINUM ALLOY COMPRISING ABOUT 30% TO 90% TITANIUM AND 10% TO 70% ALUMINUM, AND THE BALANCE SUBSTANTIALLY ALL A METAL POWDER SELECTED FROM THE CLASS CONSISTING OF COPPER AND COPPER BASE ALLOYS.
References Cited (Backward Citations)
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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) | 1962-05-25 | 1962-11-24 | 1963-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-25 | 1966-11-24 | 1967-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-25 | 1970-11-24 | 1971-05-26 | $7700.00 | Window Closed / Lapsed |