US3243446A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of treating spent rolling oil solution with spent pickling solution
Assignee: Individual
•
Filing: 1962-08-02
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Granted: 1966-03-29
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Expires: 1982-08-02
Abstract
No abstract record available.
Inventors
- 👤 Benjamin W Funk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:42
CPC Classifications
C; C11; C11B; C11B13/00; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/74
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
A PROCESS FOR TREATING SPENT ROLLING OIL SOLUTION CONTAINING A FATTY OIL EMULSION, WATER AND ROLLING MILL CONTAMINANTS, AND SPEND PICKING SOLUTION CONTAINING SULPHURIC ACID, COMPRISING THE STEPS OF; ADDING A GREATER PROPORTION OF SAID PICKLING SOLUTION TO SAID ROLLING OIL SOLUTION; AND MAINTAINING SAID PICKLING AND ROLLING OIL SOLUTION MIXTURE AT A TEMPERATURE BETWEEN ABOUT 90*F. AND 215* F. UNTIL INSOLUBLE PRECIPITATES ARE FORMED AND AN OIL AND AN AQUEOUS LAYERING OCCURS.
Claim 2
Dependent Claim
73 words
A PROCESS FOR TREATING SPENT ROLLING OIL SOLUTION CONTAINING A FATTY OIL EMULSION, WATER AND ROLLING MILL CONTAMINANTS, AND SPEND PICKING SOLUTION CONTAINING SULPHURIC ACID, COMPRISING THE STEPS OF; ADDING A GREATER PROPORTION OF SAID PICKLING SOLUTION TO SAID ROLLING OIL SOLUTION; AND MAINTAINING SAID PICKLING AND ROLLING OIL SOLUTION MIXTURE AT A TEMPERATURE BETWEEN ABOUT 90*F. AND 215* F. UNTIL INSOLUBLE PRECIPITATES ARE FORMED AND AN OIL AND AN AQUEOUS LAYERING OCCURS.
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) | 1969-03-28 | 1969-09-27 | 1970-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-28 | 1973-09-27 | 1974-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-28 | 1977-09-27 | 1978-03-29 | $7700.00 | Window Closed / Lapsed |