US2993867A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for destroying foam
Assignee: Colgate Palmolive Co
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Filing: 1955-09-12
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Granted: 1961-07-25
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Expires: 1975-09-12
Abstract
No abstract record available.
Inventors
- 👤 Wilson Abraham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:22
CPC Classifications
B; B01; B01D; B01D19/00; B01D19/02; B01D19/04; B01D19/0404; B01D19/0413
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
A PROCESS FOR DESTROYING A FOAM COMPOSED OF A GASEOUS PHASE DISPERSED IN A SOLUTION CONTAINING AN IONIC SURFACE ACTIVE AGENT IN A POLAR SOLVENT, WHICH COMPRISES CONTACTING THE FOAM WITH AN ION EXCHANGE RESIN CAPABLE OF EXCHANGING A MOBILE ION THEREOF FOR THE ACTIVE ION OF THE SURFACE ACTIVE AGENT, IN AMOUNT EFFECTIVE TO DESTROY FOAM AND UP TO ABOUT 2 POUNDS OF ION EXCHANGE RESIN PER HUNDRED GALLONS OF FOAM.
Claim 2
Dependent Claim
72 words
A PROCESS FOR DESTROYING A FOAM COMPOSED OF A GASEOUS PHASE DISPERSED IN A SOLUTION CONTAINING AN IONIC SURFACE ACTIVE AGENT IN A POLAR SOLVENT, WHICH COMPRISES CONTACTING THE FOAM WITH AN ION EXCHANGE RESIN CAPABLE OF EXCHANGING A MOBILE ION THEREOF FOR THE ACTIVE ION OF THE SURFACE ACTIVE AGENT, IN AMOUNT EFFECTIVE TO DESTROY FOAM AND UP TO ABOUT 2 POUNDS OF ION EXCHANGE RESIN PER HUNDRED GALLONS OF FOAM.
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) | 1964-07-24 | 1965-01-23 | 1965-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-24 | 1969-01-23 | 1969-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-24 | 1973-01-23 | 1973-07-25 | $7700.00 | Window Closed / Lapsed |