US2906712A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Defoamant composition
Assignee: ExxonMobil Oil Corp
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Filing: 1955-12-13
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Granted: 1959-09-29
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Expires: 1975-12-13
Abstract
No abstract record available.
Inventors
- 👤 Roy T Edwards
- 👤 Ernst P Rittershausen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:50
CPC Classifications
B; B01; B01D; B01D19/00; B01D19/02; B01D19/04; B01D19/0404
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A COMPOSITION FOR SUPPRESSING FOAMING IN AQUEOUS MEDIA HAVING A PH LOWER THAN 7, WHICH COMPRISES BETWEEN ABOUT 2 AND ABOUT 50 WEIGHT PERCENT ALIPHATIC AMINE CONTAINING BETWEEN ABOUT 8 AND ABOUT 18 CARBON ATOMS; BETWEEN ABOUT 0.1 AND ABOUT 0.5 WEIGHT PERCENT OF A NONIONIC SURFACE ACTIVE AGENT, THE WEIGHT RATIO OF SAID SURFACE ACTIVE AGENT TO SAID AMINE BEING BETWEEN ABOUT 0.01 AND ABOUT 0.05; AND THE BALANCE A MINERAL OIL HAVING A SAYBOLT UNIVERSAL VICOSITY VARYING BETWEEN ABOUT 30 AND ABOUT 200 SECONDS AT 100* F.
Claim 2
Dependent Claim
89 words
A COMPOSITION FOR SUPPRESSING FOAMING IN AQUEOUS MEDIA HAVING A PH LOWER THAN 7, WHICH COMPRISES BETWEEN ABOUT 2 AND ABOUT 50 WEIGHT PERCENT ALIPHATIC AMINE CONTAINING BETWEEN ABOUT 8 AND ABOUT 18 CARBON ATOMS; BETWEEN ABOUT 0.1 AND ABOUT 0.5 WEIGHT PERCENT OF A NONIONIC SURFACE ACTIVE AGENT, THE WEIGHT RATIO OF SAID SURFACE ACTIVE AGENT TO SAID AMINE BEING BETWEEN ABOUT 0.01 AND ABOUT 0.05; AND THE BALANCE A MINERAL OIL HAVING A SAYBOLT UNIVERSAL VICOSITY VARYING BETWEEN ABOUT 30 AND ABOUT 200 SECONDS AT 100* F.
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) | 1962-09-28 | 1963-03-30 | 1963-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-28 | 1967-03-30 | 1967-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-28 | 1971-03-30 | 1971-09-29 | $7700.00 | Window Closed / Lapsed |