Patent US3220869A successfully refreshed from Google Patents.
US3220869A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for improving textile fabrics
Assignee: BASF SE
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Filing: 1960-11-16
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Granted: 1965-11-30
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Expires: 1980-11-16
Abstract
No abstract record available.
Inventors
- 👤 Ruemens Wilhelm
- 👤 Goetz Norbert
- 👤 Zeidler Rolf
- 👤 Tulo Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:21
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/39; D06M15/21; D06M15/285; D06M15/29; D06M15/423; D06Q; D06Q1/00; D06Q1/08; Y; Y10; Y10T; Y10T442/00; Y10T442/20; Y10T442/2369; Y10T442/2393; Y10T442/273
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A PROCESS FOR IMPROVING A TEXTILE FABRIC WHICH CONTAINS AT LEAST 25% BY WEIGHT OF CELLULOSE FIBERS SAID PROCCESS COMPRISING TREATING SAID TEXTILE FABRIC WITH AN AQUEOUS LIQUOR WHICH CONTAINS: (A) A REACTION PRODUCT OF AN AMINOPLAST-FORMING SUBSTANCE WITH FORMALDEHYLE WHICH CONTAINS IN THE MOLECULE AT LEAST TWO NITROGEN ATOMS AND CONNECTED TO NITROGEN, AT LEAST TWO RADICALS SELECTED FROM THE GROUP CONSISTING OF METHYLOL GROUPS AND ETHERIFIED METHYLOL GROUPS, AND (B) A COPOLYMER FORMED FROM ABOUT 1 TO 25% BY WEIGHT OF A COMPOUND OF THE GENERAL FORMULA
Claim 2
Dependent Claim
89 words
A PROCESS FOR IMPROVING A TEXTILE FABRIC WHICH CONTAINS AT LEAST 25% BY WEIGHT OF CELLULOSE FIBERS SAID PROCCESS COMPRISING TREATING SAID TEXTILE FABRIC WITH AN AQUEOUS LIQUOR WHICH CONTAINS: (A) A REACTION PRODUCT OF AN AMINOPLAST-FORMING SUBSTANCE WITH FORMALDEHYLE WHICH CONTAINS IN THE MOLECULE AT LEAST TWO NITROGEN ATOMS AND CONNECTED TO NITROGEN, AT LEAST TWO RADICALS SELECTED FROM THE GROUP CONSISTING OF METHYLOL GROUPS AND ETHERIFIED METHYLOL GROUPS, AND (B) A COPOLYMER FORMED FROM ABOUT 1 TO 25% BY WEIGHT OF A COMPOUND OF THE GENERAL FORMULA
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-29 | 1969-05-31 | 1969-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-29 | 1973-05-31 | 1973-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-29 | 1977-05-31 | 1977-11-30 | $7700.00 | Window Closed / Lapsed |