US3215636A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for substantially preventing the formation of foam
Assignee: Bayer AG
•
Filing: 1961-11-28
•
Granted: 1965-11-02
•
Expires: 1981-11-28
Abstract
No abstract record available.
Inventors
- 👤 Hagge Walter
- 👤 Boehmke Gunther
- 👤 Geffers Hans
- 👤 Quaedvlieg Mathieu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:17
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/0005; C11D3/0026; B; B01; B01D; B01D19/00; B01D19/02; B01D19/04; B01D19/0404; C11D1/00; C11D1/66; C11D1/72
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
A PROCESS FOR SUBSTANTIALLY PREVENTING THE FORMATION OF FOAM IN AN AQUEOUS MEDIUM LIABLE TO FORMING FOAM WHICH CONSISTS IN INCORPORATING INTO THE AQUEOUS MEDIUM AN ACTIVE AMOUNT OF THE REACTION PRODUCT OF (1) A MEMBER SELECTED FROM THE GROUP CONSISTING OF ETHYLENE OXIDE, PROPYLENE OXIDE AND BUTYLENE OXIDE WITH (2) AN OLIGOSACCHARIDE SELECTED FROM THE GROUP CONSISTING OF SACCHAROSE, GALACTOSE, MALTOSE AND RAFFINOSE AT A MOLECULAR RATIO OF ABOUT 8-200:1.
Claim 2
Dependent Claim
71 words
A PROCESS FOR SUBSTANTIALLY PREVENTING THE FORMATION OF FOAM IN AN AQUEOUS MEDIUM LIABLE TO FORMING FOAM WHICH CONSISTS IN INCORPORATING INTO THE AQUEOUS MEDIUM AN ACTIVE AMOUNT OF THE REACTION PRODUCT OF (1) A MEMBER SELECTED FROM THE GROUP CONSISTING OF ETHYLENE OXIDE, PROPYLENE OXIDE AND BUTYLENE OXIDE WITH (2) AN OLIGOSACCHARIDE SELECTED FROM THE GROUP CONSISTING OF SACCHAROSE, GALACTOSE, MALTOSE AND RAFFINOSE AT A MOLECULAR RATIO OF ABOUT 8-200:1.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |