Patent US3076768A successfully refreshed from Google Patents.
US3076768A
Expired / Lapsed
US
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Defoamer
Assignee: Hercules Powder Co
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Filing: 1960-04-05
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Granted: 1963-02-05
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Expires: 1980-04-05
Abstract
No abstract record available.
Inventors
- 👤 Francis J Boylan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:23
CPC Classifications
B; B01; B01D; B01D19/00; B01D19/02; B01D19/04; B01D19/0404
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
A DEFOAMING COMPOSITION CONSISTING ESSENTIALLY OF FROM ABOUT 80% TO ABOUT 97% OF A WATER-INSOLUBLE, ORGANIC LIQUID SELECTED FROM THE GROUP CONSISTING OF KEROSENE, NAPHTHENIC MINERAL OIL, PARAFFINIC MINERAL OIL, CHLORINATED NAPHTHENIC MINERAL OIL, CHLORINATED PARAFFINIC MINERAL OIL, AND LIQUID TRIFLUOROVINYL CHLORIDE POLYMER, FROM ABOUT 3% TO ABOUT 20% OF HYDROPHOBIC SILICA SUSPENDED IN THE LIQUID, AND FROM ABOUT 0.5% TO ABOUT 5% OF A SURFACTANT FOR THE ORGANIC LIQUID, SAID PERCENTAGES BEING BASED ON THE COMPOSITION.
Claim 2
Dependent Claim
77 words
A DEFOAMING COMPOSITION CONSISTING ESSENTIALLY OF FROM ABOUT 80% TO ABOUT 97% OF A WATER-INSOLUBLE, ORGANIC LIQUID SELECTED FROM THE GROUP CONSISTING OF KEROSENE, NAPHTHENIC MINERAL OIL, PARAFFINIC MINERAL OIL, CHLORINATED NAPHTHENIC MINERAL OIL, CHLORINATED PARAFFINIC MINERAL OIL, AND LIQUID TRIFLUOROVINYL CHLORIDE POLYMER, FROM ABOUT 3% TO ABOUT 20% OF HYDROPHOBIC SILICA SUSPENDED IN THE LIQUID, AND FROM ABOUT 0.5% TO ABOUT 5% OF A SURFACTANT FOR THE ORGANIC LIQUID, SAID PERCENTAGES BEING BASED ON THE COMPOSITION.
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) | 1966-02-04 | 1966-08-06 | 1967-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-04 | 1970-08-06 | 1971-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-04 | 1974-08-06 | 1975-02-05 | $7700.00 | Window Closed / Lapsed |