Patent US2611734A successfully refreshed from Google Patents.
US2611734A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wax production process
Assignee: Gulf Research and Development Co
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Filing: 1950-06-29
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Granted: 1952-09-23
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Expires: 1970-06-29
Abstract
No abstract record available.
Inventors
- 👤 William P Ridenour
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:39
CPC Classifications
C; C10; C10G; C10G73/00; C10G73/02; C10G73/06; C08; C08L; C08L91/00; C08L91/06; C08L91/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
A PROCESS OF PREPARING A MIXTURE OF PARAFFIN WAXES HAVING A HIGH MELTING POINT AND HIGH TENSILE STRENGTH WHICH COMPRISES SOLVENT DEWAXING A FOOTS OIL DISCARD AT A TEMPERATURE FROM ABOUT 60* TO ABOUT 100* F. TO FORM A LIQUID AND A SOLID PHASE, SAID SOLID PHASE CONTAINING CRUDE RECOVERED WAX; REMOVING THE SOLVENT FROM THE SOLID PHASE TO OBTAIN A RECOVERED WAX HAVING A MELTING POINT OF AT LEAST ABOUT 115* F. AND A TENSILE STRENGTH OF AT LEAST ABOUT 100 POUNDS PER SQUARE INCH; AND COMBINING THE RECOVERED WAX WITH A REFINED WAX HAVING A MELTING POINT OF AT LEAST ABOUT 115* F AND A TENSILE STRENGTH OF AT LEAST ABOUT 150 POUNDS PER SQUARE INCH TO FORM A MIXTURE CONTAINING NOT MORE THAN 5 WEIGHT PER CENT RECOVERED WAX AND HAVING A MELTING POINT AND A TENSILE STRENGTH SUBSTANTIALLY EQUAL TO THE MELTING POINT AND TENSILE STRENGTH OF THE REFINED WAX.
Claim 2
Dependent Claim
154 words
A PROCESS OF PREPARING A MIXTURE OF PARAFFIN WAXES HAVING A HIGH MELTING POINT AND HIGH TENSILE STRENGTH WHICH COMPRISES SOLVENT DEWAXING A FOOTS OIL DISCARD AT A TEMPERATURE FROM ABOUT 60* TO ABOUT 100* F. TO FORM A LIQUID AND A SOLID PHASE, SAID SOLID PHASE CONTAINING CRUDE RECOVERED WAX; REMOVING THE SOLVENT FROM THE SOLID PHASE TO OBTAIN A RECOVERED WAX HAVING A MELTING POINT OF AT LEAST ABOUT 115* F. AND A TENSILE STRENGTH OF AT LEAST ABOUT 100 POUNDS PER SQUARE INCH; AND COMBINING THE RECOVERED WAX WITH A REFINED WAX HAVING A MELTING POINT OF AT LEAST ABOUT 115* F AND A TENSILE STRENGTH OF AT LEAST ABOUT 150 POUNDS PER SQUARE INCH TO FORM A MIXTURE CONTAINING NOT MORE THAN 5 WEIGHT PER CENT RECOVERED WAX AND HAVING A MELTING POINT AND A TENSILE STRENGTH SUBSTANTIALLY EQUAL TO THE MELTING POINT AND TENSILE STRENGTH OF THE REFINED WAX.
References Cited (Backward Citations)
US1937518A
Cited
US2127668A
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US2229659A
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US2361582A
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US2486014A
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US2467959A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-23 | 1956-03-24 | 1956-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-23 | 1960-03-24 | 1960-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-23 | 1964-03-24 | 1964-09-23 | $7700.00 | Window Closed / Lapsed |