US3657173A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil and water repellent compositions
Assignee: EIDP Inc
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Filing: 1970-03-03
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Granted: 1972-04-18
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Expires: 1990-03-03
Abstract
Abstract A COMPOSITION WHICH IS IN THE FORM OF AN EMULSION OR WHICH CAN READILY BE CONVERTED INTO AN EMULSION ON SHAKING, SUITABLE FOR IMPARTING OIL AND/OR WATER REPELLENCY TO AN ARTICLE WHICH COMPRISES A FLUORINE-CONTAINING POLYMER HAVING OIL AND/OR WATER REPELLENCY PROPERTIES, A MAJOR AMOUNT OF A HALOGENATED SOLVENT WHICH IS PERCHLOROETHYLENE, TRICHLOROETHYLENE, 1,1,2-TRICHLORO-1,2,2-TRIFLUOROETHANE, CARBON TETRACHLORIDE, METHYLENE CHLORIDE, METHYL CHLOROFORM, MONOCHLOROBENZENE, ORTHO-DICHLOROBENZENE, 1,1,2,2-TETRACHLORO-1,2-DIFLURORETHANE OR 1,1,1-TRICHLORO-2, 2,3,3,3-PENTAFLUOROPROPANE; A MINOR AMOUNT OF AN ALKANOL OF 1 TO 5 CARBON ATOMS, AND WATER.
Inventors
- 👤 Albert R Eanzel
- 👤 John Preston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 00:01
CPC Classifications
D; D06; D06M; D06M23/00; D06M23/10; C; C08; C08J; C08J3/00; C08J3/02; C08J3/09; C08J3/091; C08J3/093; C08L; C08L33/00; C08L33/04; C08L33/14; C08L33/16; D06M15/00; D06M15/19; D06M15/21; D06M15/263; D06M15/277; C08L33/06
Claims Analysis
Total Claims: 0
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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) | 1975-04-18 | 1975-10-18 | 1976-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-18 | 1979-10-18 | 1980-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-18 | 1983-10-18 | 1984-04-18 | $7700.00 | Window Closed / Lapsed |