Patent US4158635A successfully refreshed from Google Patents.
US3741925A
Expired / Lapsed
US
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Water repellent ethylene copolymer dispersions
Assignee: EIDP Inc
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Filing: 1971-04-02
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Granted: 1973-06-26
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Expires: 1991-04-02
Abstract
Abstract AN AQUEOUS ETHYLENE COPOLYMER DISPRSION, FROM HICH AN IMPROVED WATER-REPELLENT COATING CAN BE APPLIED, IS PROVIDED. THE DISPERSION COMPRISES AN ETHYLENE COPOLYMER, AN AMMONIUM SALT OF A MINERAL ACID, AND FROM 0 TO 25 PERCENT BY WEIGHT, BASED ON SOLIDS WEIGHT, OF AN AMINO-FORMALDEHYDE RESIN. AN ARTICLE HAVING THEREON A COATING OF THE DISPERSED PHASE OF THE DISPERSION AND A PROCESS FOR PREPARING THE ARTICLE ARE ALSO PROVIDED.
Inventors
- 👤 Donald J Mc
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:37
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/263; C; C08; C08J; C08J3/00; C08J3/02; C08J3/03; C08J3/05; C09; C09D; C09D123/00; C09D123/02; C09D123/04; C09D123/08; D06M15/227
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) | 1976-06-25 | 1976-12-25 | 1977-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-25 | 1980-12-25 | 1981-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-25 | 1984-12-25 | 1985-06-26 | $7700.00 | Window Closed / Lapsed |