Patent US3139329A successfully refreshed from Google Patents.
US3139329A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve lifters and the like having cemented carbide facings
Assignee: Mack Trucks Inc
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Filing: 1960-05-11
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Granted: 1964-06-30
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Expires: 1980-05-11
Abstract
No abstract record available.
Inventors
- 👤 Theodore J Zeller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:48
CPC Classifications
F; F01; F01L; F01L1/00; F01L1/12; F01L1/14; F01L2301/00; F01L2303/00; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/923; Y10S428/924; Y10S428/925; Y10T; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12028; Y10T428/12063; Y10T428/12069; Y10T428/12076; Y10T428/12083; Y10T428/12493; Y10T428/12771; Y10T428/12861; Y10T428/12903; Y10T428/12917
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
45 words
A BEARING MEMBER OF THE CLASS DESCRIBED FORMED OF FERROUS METAL AND PROVIDED WITH A CEMENTED CARBIDE FACING AND A LAYER OF A COPPER-IRON ALLOY UNITING SAID FACING TO SAID MEMBER, SAID ALLOY CONTAINING BETWEEN ABOUT 2% AND 3% IRON AND THE REMAINDER, ESSENTIALLY COPPER.
Claim 2
Dependent Claim
45 words
A BEARING MEMBER OF THE CLASS DESCRIBED FORMED OF FERROUS METAL AND PROVIDED WITH A CEMENTED CARBIDE FACING AND A LAYER OF A COPPER-IRON ALLOY UNITING SAID FACING TO SAID MEMBER, SAID ALLOY CONTAINING BETWEEN ABOUT 2% AND 3% IRON AND THE REMAINDER, ESSENTIALLY COPPER.
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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) | 1967-06-30 | 1967-12-30 | 1968-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-30 | 1971-12-30 | 1972-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-30 | 1975-12-30 | 1976-06-30 | $7700.00 | Window Closed / Lapsed |