US3705860A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antifoam agent
Assignee: Diversey Wyandotte Corp
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Filing: 1970-09-23
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Granted: 1972-12-12
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Expires: 1990-09-23
Abstract
Abstract IMPROVED ANTIFOAM AGENTS PARTICULARLY ADAPTED FOR USE IN PAPER AND PULP MANUFACTURING PROCESSES ARE PREPARED FROM A MIXTURE OF NON-POLAR OIL, PRECIPITATED SILICA, METALLO-ORGANIC CATALYST, POLYMETHYLISILOXANE AND MICROCRYSTALLINE PARAFFIN WAX. THESE ANTIFOAM AGENTS ARE USEFUL ALSO IN LATEX PAINT MANUFACTURE AND THE LIKE.
Inventors
- 👤 Jacque L Duvall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:03
CPC Classifications
D; D21; D21C; D21C3/00; D21C3/22; D21C3/28; B; B01; B01D; B01D19/00; B01D19/02; B01D19/04; B01D19/0404
Claims Analysis
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-12-12 | 1976-06-12 | 1976-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-12 | 1980-06-12 | 1980-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-12 | 1984-06-12 | 1984-12-12 | $7700.00 | Window Closed / Lapsed |