US3268469A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Terpolymer dispersions for textile coating
Assignee: Huels AG
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Filing: 1962-10-19
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Granted: 1966-08-23
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Expires: 1982-10-19
Abstract
No abstract record available.
Inventors
- 👤 Muller Rudolf
- 👤 Heinrich Erwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:14
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/285; C; C08; C08F; C08F18/00; C08F18/02; C08F18/04; C08F20/00; C08F20/02; C08F20/52; C08F20/54
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
A HIGHLY CONCENTRATED, STABLE DISPERSION SUITABLE FOR TEXTILE COATING, SAID DISPERSION CONSISTING ESSENTIALLY OF AN AQUEOUS LIQUID AND A TERPOLYMER OF 25 PARTS BY WEIGHT OF TERT-BUTYLACRYLAMIDE, 73 PARTS BY WEIGHT OF VINYLPROPIONATE AND 2 PARTS BY WEIGHT OF DIVINYLBENZENE, SAID DISPERSION CONTAINING ABOUT 40% BY WEIGHT OF SAID TERPOLYME5R.
Claim 2
Dependent Claim
51 words
A HIGHLY CONCENTRATED, STABLE DISPERSION SUITABLE FOR TEXTILE COATING SAID DISPERSION CONSISTING ESSENTIALLY OF AN AQUEOUS LIQUID AND A TERPOLYMER OF 25 PARTS BY WEIGHT OF TERT-BUTYLACRYLAMIDE, 40 PARTS BY WEIGHT OF VINYL ACETATE AND 35 PARTS BY WEIGHT OF VINYLPROPIONATE, SAID DISPERSION CONTAINING ABOUT 40% BY WEIGHT OF SAID TERPOLYMER.
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) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |