US2938262A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the cold reduction of strip metal
Assignee: QUAKER CHEMICAL PRODUCTS Corp
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Filing: 1958-07-25
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Granted: 1960-05-31
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Expires: 1978-07-25
Abstract
No abstract record available.
Inventors
- 👤 George E Barker
- 👤 Charles E Santangelo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:31
CPC Classifications
B; B21; B21B; B21B45/00; B21B45/02; B21B45/0239; B21B45/0242; C; C10; C10M; C10M101/00; C10M101/04; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4981; Y10T29/49812
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
IN A PROCESS OF COLD REDUCTION OF STRIP METAL, THE STEP, WHICH COMPRISES COATING THE METAL PRIOR TO PASSING SAME BETWEEN REDUCING ROLLS WITH A ROLLING OIL CONTAINING A LUBRICANT SELECTED FROM THE GROUP CONSISTING OF FATS, OILS AND GREASES OF NON-DRYING AND SEMI-DRYING CHARACTERISTICS HEAT TREATED AT A TEMPERATURE RANGING FROM ABOUT 200*F. TO ABOUT 500*F. FROM ABOUT 6 TO ABOUT 72 HOURS AND HAVING A VISCOSITY OF FROM ABOUT 200 TO ABOUT 500 SAYBOLT UNIVERSAL SECONDS AT 100*F. AND A POUR POINT FROM ABOUT 0*F. TO ABOUT 85*F., SAID LUBRICANT BEING STABLE AT HIGH COLD METAL REDUCTION SPEEDS.
Claim 2
Dependent Claim
100 words
IN A PROCESS OF COLD REDUCTION OF STRIP METAL, THE STEP, WHICH COMPRISES COATING THE METAL PRIOR TO PASSING SAME BETWEEN REDUCING ROLLS WITH A ROLLING OIL CONTAINING A LUBRICANT SELECTED FROM THE GROUP CONSISTING OF FATS, OILS AND GREASES OF NON-DRYING AND SEMI-DRYING CHARACTERISTICS HEAT TREATED AT A TEMPERATURE RANGING FROM ABOUT 200*F. TO ABOUT 500*F. FROM ABOUT 6 TO ABOUT 72 HOURS AND HAVING A VISCOSITY OF FROM ABOUT 200 TO ABOUT 500 SAYBOLT UNIVERSAL SECONDS AT 100*F. AND A POUR POINT FROM ABOUT 0*F. TO ABOUT 85*F., SAID LUBRICANT BEING STABLE AT HIGH COLD METAL REDUCTION SPEEDS.
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) | 1963-05-31 | 1963-11-30 | 1964-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-31 | 1967-11-30 | 1968-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-31 | 1971-11-30 | 1972-05-31 | $7700.00 | Window Closed / Lapsed |