US2855267A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of improving the acid dye receptivity of nylon textiles by reaction with specific organic amines and products produced thereby
Assignee: EIDP Inc
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Filing: 1955-04-08
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Granted: 1958-10-07
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Expires: 1975-04-08
Abstract
No abstract record available.
Inventors
- 👤 Zimmerman Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:32
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/322; D06M13/325; D06M13/332; D06P; D06P1/00; D06P1/44; D06P1/64; D06P1/642; D06P1/645; Y; Y10; Y10S; Y10S8/00; Y10S8/93
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
49 words
A PROCESS FOR INCREASING THE ACID DYE RECEPTIVITY OF A TEXTILE PRODUCED FROM A FIBER-FORMING SYNTHETIC LINEAR POLYCARBONAMIDE HAVING RECURRING AMIDE GROUPS AS INTEGRAL PARTS OF THE MAIN POLYMER CHAIN, WHICH COMPRISES HEATING THE SAID TEXTILE IN AN INERT MEDIUM IN CONTACT WITH AN ORGANIC COMPOUND HAVING THE FORMULA:
Claim 2
Dependent Claim
49 words
A PROCESS FOR INCREASING THE ACID DYE RECEPTIVITY OF A TEXTILE PRODUCED FROM A FIBER-FORMING SYNTHETIC LINEAR POLYCARBONAMIDE HAVING RECURRING AMIDE GROUPS AS INTEGRAL PARTS OF THE MAIN POLYMER CHAIN, WHICH COMPRISES HEATING THE SAID TEXTILE IN AN INERT MEDIUM IN CONTACT WITH AN ORGANIC COMPOUND HAVING THE FORMULA:
Claim 3
Dependent Claim
9 words
THE TEXTILE PRODUCED BY THE PROCESS OF CLAIM 1.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-06 | 1962-04-07 | 1962-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-06 | 1966-04-07 | 1966-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-06 | 1970-04-07 | 1970-10-07 | $7700.00 | Window Closed / Lapsed |