US2748086A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for inhibiting foam
Assignee: Baker Petrolite LLC
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Filing: 1951-12-18
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Granted: 1956-05-29
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Expires: 1971-12-18
Abstract
No abstract record available.
Inventors
- 👤 Louis T Monson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:48
CPC Classifications
B; B01; B01D; B01D19/00; B01D19/02; B01D19/04; B01D19/0404
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A PROCESS FOR INHIBITING FOAM CHARACTERIZED BY SUBJECTING A NON-DETERSIVE FOAMING COMPOSITION TO THE ACTION OF NOT MORE THAN 1 PER CENT OF AN ACIDIC ESTERIFICATION PRODUCT OF A DICARBOXY ACID AND A POLYALKYLENE GLYCOL IN WHICH THE RATIO OF EQUIVALENTS OF DICARBOXY ACID TO POLYALKYLENE GLYCOL IS WITHIN THE RANGE OF 1.1 TO 2.0, IN WHICH THE ALKYLENE GROUP HAS FROM 2 TO 3 CARBON ATOMS AND IN WHICH THE MOLECULAR WEIGHT OF THE PRODUCT LIES BETWEEN 1,500 AND 4,000.
Claim 2
Dependent Claim
81 words
A PROCESS FOR INHIBITING FOAM CHARACTERIZED BY SUBJECTING A NON-DETERSIVE FOAMING COMPOSITION TO THE ACTION OF NOT MORE THAN 1 PER CENT OF AN ACIDIC ESTERIFICATION PRODUCT OF A DICARBOXY ACID AND A POLYALKYLENE GLYCOL IN WHICH THE RATIO OF EQUIVALENTS OF DICARBOXY ACID TO POLYALKYLENE GLYCOL IS WITHIN THE RANGE OF 1.1 TO 2.0, IN WHICH THE ALKYLENE GROUP HAS FROM 2 TO 3 CARBON ATOMS AND IN WHICH THE MOLECULAR WEIGHT OF THE PRODUCT LIES BETWEEN 1,500 AND 4,000.
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) | 1959-05-29 | 1959-11-28 | 1960-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-29 | 1963-11-28 | 1964-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-29 | 1967-11-28 | 1968-05-29 | $7700.00 | Window Closed / Lapsed |