Patent US2964476A successfully refreshed from Google Patents.
US2964476A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing a metal-lubricant
Assignee: —
•
Filing: —
•
Granted: 1960-12-13
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Expires: 1977-12-13
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:19
CPC Classifications
B; B22; B22F; B22F1/00; B22F1/10; B22F2998/00; B22F2998/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
PROCESS FOR PRODUCING A MATERIAL FOR USES AS A BEARING AND AN ELECTRIC CONTACT FROM METALLIC POWDER, A FIRST SOLID LUBRICANT SELECTED FROM THE GROUP CONSISTING OF POLYTETRAFLUOROETHYLENE AND CHLOROTRIFLUOROETHYLENE POLYMER, AND A SECOND SOLID LUBRICANE SELECTED FROM THE GROUP CONSISTING OF GRAPHITE, MOLYBDENUM SULPHIDE AND MIXTURES OF GRAPHITE AND MOLYBDENUM SULPHIDE, THE METALLIC POWDER BEING PRESENT IN AN AMOUNT OF 40 TO 95% BY WEIGHT OF THE MATERIAL AND THE BALANCE BEING MADE UP OF SUBSTANTIAL PROPORATIONS OF THE FIRST AND SECOND SOLID LUBRICANTS, CHARACTERIZED BY MAKING A PRELIMINARY MIX OF AN AQUEOUS DISPERSION OF SAID FIRST AND SECOND SOLID LUBRICANTS,DRYING AND DISINTEGRATING THE MIX, BLENDING IT WITH THE METALLIC POWDER, AND THEN BRINGING THE MIX TO SHAPE BY PRESSURE AND BY HEATING TO A TEMPERATURE OF 200 TO 450*C. TO SINTER THE BODY.
Claim 2
Dependent Claim
135 words
PROCESS FOR PRODUCING A MATERIAL FOR USES AS A BEARING AND AN ELECTRIC CONTACT FROM METALLIC POWDER, A FIRST SOLID LUBRICANT SELECTED FROM THE GROUP CONSISTING OF POLYTETRAFLUOROETHYLENE AND CHLOROTRIFLUOROETHYLENE POLYMER, AND A SECOND SOLID LUBRICANE SELECTED FROM THE GROUP CONSISTING OF GRAPHITE, MOLYBDENUM SULPHIDE AND MIXTURES OF GRAPHITE AND MOLYBDENUM SULPHIDE, THE METALLIC POWDER BEING PRESENT IN AN AMOUNT OF 40 TO 95% BY WEIGHT OF THE MATERIAL AND THE BALANCE BEING MADE UP OF SUBSTANTIAL PROPORATIONS OF THE FIRST AND SECOND SOLID LUBRICANTS, CHARACTERIZED BY MAKING A PRELIMINARY MIX OF AN AQUEOUS DISPERSION OF SAID FIRST AND SECOND SOLID LUBRICANTS,DRYING AND DISINTEGRATING THE MIX, BLENDING IT WITH THE METALLIC POWDER, AND THEN BRINGING THE MIX TO SHAPE BY PRESSURE AND BY HEATING TO A TEMPERATURE OF 200 TO 450*C. TO SINTER THE BODY.
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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) | 1963-12-13 | 1964-06-13 | 1964-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-13 | 1968-06-13 | 1968-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-13 | 1972-06-13 | 1972-12-13 | $7700.00 | Window Closed / Lapsed |