US2545677A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microcrystalline wax as an antifoam agent in soluble oil-water emulsion
Assignee: Sunoco Inc
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Filing: 1947-05-29
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Granted: 1951-03-20
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Expires: 1967-05-29
Abstract
No abstract record available.
Inventors
- 👤 Elmer H Sperry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:43
CPC Classifications
C; C10; C10M; C10M171/00; C10M171/004; B; B01; B01D; B01D19/00; B01D19/02; B01D19/04; B01D19/0404
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
A COMOSITION OF MATTER COMPRISING A SOLUBLE OIL HAVING THE KNOWN COMPOSITION OF A MAJOR PROPORTION OF A MINERAL OIL AND A MINOR PROPORTION, EFFECTIVE TO IMPART TO THE MINERAL OIL MISCIBILITY WITH WATER, OF A SOAP, SAID KNOWN COMPOSITIONS BEING CHARACTERIZED BY MISCIBILITY WITH WATER TO FORM AN EMULSION HAVING FOAMING PROPERTIES AND MISCROCRYSTALLINE WAX HAVING A MELTING POINT OF FROM AN EMULSION HAVING FOAMMOLECULAR WEIGHT OF FROM 145* F. TO 200* F. AND A COMPRISING A SMALL FRACTIONAL PROPORTION OF SAID SOAP AND EFFECTIVE TO INHIBIT EXCESSIVE FOAMING AND TO CAUSE RAPID DEFOAMING.
Claim 2
Dependent Claim
95 words
A COMOSITION OF MATTER COMPRISING A SOLUBLE OIL HAVING THE KNOWN COMPOSITION OF A MAJOR PROPORTION OF A MINERAL OIL AND A MINOR PROPORTION, EFFECTIVE TO IMPART TO THE MINERAL OIL MISCIBILITY WITH WATER, OF A SOAP, SAID KNOWN COMPOSITIONS BEING CHARACTERIZED BY MISCIBILITY WITH WATER TO FORM AN EMULSION HAVING FOAMING PROPERTIES AND MISCROCRYSTALLINE WAX HAVING A MELTING POINT OF FROM AN EMULSION HAVING FOAMMOLECULAR WEIGHT OF FROM 145* F. TO 200* F. AND A COMPRISING A SMALL FRACTIONAL PROPORTION OF SAID SOAP AND EFFECTIVE TO INHIBIT EXCESSIVE FOAMING AND TO CAUSE RAPID DEFOAMING.
References Cited (Backward Citations)
US2298844A
Cited
US2340035A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-19 | 1954-09-18 | 1955-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-19 | 1958-09-18 | 1959-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-19 | 1962-09-18 | 1963-03-20 | $7700.00 | Window Closed / Lapsed |