US3118272A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Powdered metal bearings
Assignee: —
•
Filing: —
•
Granted: 1964-01-21
•
Expires: 1981-01-21
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:00
CPC Classifications
D; D01; D01H; D01H7/00; D01H7/02; D01H7/52; D01H7/60; D01H7/602; F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/06; F16C33/12; F16C33/121; F16C2340/00; F16C2340/18; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49709
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
A POROUS BEARING HAVING A SURFACE ADAPTED FOR ENGAGEMENT WITH A HIGH SPEED TRAVELER WHICH HAS A SMALL AREA IN CONTACT THEREWITH, SAID BEARING CONSISTING ESSENTIALLY OF A PRESSED AND SINTERED POWDERED MIXTURE COMPRISING BY WEIGHT APPROXIMATELY 0 TO 1.0% CARBON, 1/2 TO 5% NICKEL, 0 TO 5% COPPER, 1.5 TO 4.0% AL2O3 AND THE BALANCE SUBSTANTIALLY ALL IRON.
Claim 2
Dependent Claim
59 words
A POROUS BEARING HAVING A SURFACE ADAPTED FOR ENGAGEMENT WITH A HIGH SPEED TRAVELER WHICH HAS A SMALL AREA IN CONTACT THEREWITH, SAID BEARING CONSISTING ESSENTIALLY OF A PRESSED AND SINTERED POWDERED MIXTURE COMPRISING BY WEIGHT APPROXIMATELY 0 TO 1.0% CARBON, 1/2 TO 5% NICKEL, 0 TO 5% COPPER, 1.5 TO 4.0% AL2O3 AND THE BALANCE SUBSTANTIALLY ALL IRON.
References Cited (Backward Citations)
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Cited
US2213523A
Cited
US2452323A
Cited
US2759810A
Cited
US2926484A
Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-01-20 | 1967-07-22 | 1968-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-20 | 1971-07-22 | 1972-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-20 | 1975-07-22 | 1976-01-21 | $7700.00 | Window Closed / Lapsed |