US2741016A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite bearing and method of making same
Assignee: Motors Liquidation Co
•
Filing: 1953-07-08
•
Granted: 1956-04-10
•
Expires: 1973-07-08
Abstract
No abstract record available.
Inventors
- 👤 Arvid E Roach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:17
CPC Classifications
B; B32; B32B; B32B15/00; B32B15/01; B32B15/017; Y; Y10; Y10S; Y10S384/00; Y10S384/90; Y10S384/912; Y10S428/00; Y10S428/922; Y10S428/923; Y10S428/924; Y10S428/926; Y10S428/9335; Y10S428/934; Y10S428/935; Y10T; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49643; Y10T29/49647; Y10T29/49668; Y10T29/49671; Y10T29/49673; Y10T29/49675; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12701; Y10T428/12736; Y10T428/1275; Y10T428/12757; Y10T428/12771; Y10T428/12785; Y10T428/12792; Y10T428/12861; Y10T428/12896; Y10T428/12951; Y10T428/12972
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
114 words
IN A METHOD FOR MAKING BEARINGS COMPRISING A BEARING MEMBER INCLUDING ALUMINUM AS ITS MAJOR CONSTITUENT AND HAVING AN OVERLAY OF A LEAD-BASE ALLOY CONSISTING OF AT LEAST 82% LEAD COVERING ONE SURFACE OF SAID BEARING MEMBER, THE STEPS COMPRISING: CHEMICALLY ETCHING A SURFACE OF SAID BEARING MEMBER IN A CAUSTIC SOLUTION, SUPERIMPOSING AN ACID ETCH UPON SAID CLEANED AND CAUSTIC ETCHED SURFACE, PLATING THE ETCHED SURFACE WITH A LAYER OF ZINC, PLATING A LAYER OF SILVER HAVING A THICKNESS NOT IN EXCESS OF .0001" ON THE ZINC LAYER, AND FINALLY COPLATING A BEARING ALLOY ONTO THE SURFACE OF SAID SILVER, SAID BEARING ALLOY CONSISTING OF LEAD IN QUANTITIES OF AT LEAST 82% THEREIN.
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) | 1959-04-10 | 1959-10-10 | 1960-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-10 | 1963-10-10 | 1964-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-10 | 1967-10-10 | 1968-04-10 | $7700.00 | Window Closed / Lapsed |