Patent US2989361A successfully refreshed from Google Patents.
US2989361A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dyeing process
Assignee: —
•
Filing: —
•
Granted: 1961-06-20
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Expires: 1978-06-20
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:02
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/44; D06P1/655; D06P1/66; D06P3/00; D06P3/02; D06P3/04; D06P3/24; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/927
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
IN THE PROCESS FOR DYEING ARTICLES PRODUCED FROM A MEMBER SELECTED FROM THE GROUP CONSISTING OF POLYACRYLONITRILE, POLYVINYLIDENE-CYANIDE AND COPOLYMERS THEREOF WITH OTHER VINYL COMPOUNDS, THE IMPROVEMENT WHICH COMPRISES APPLYING ONTO SAID ARTICLES, AS LEVELING AGENT, A QUATERNARY AMMONIUM COMPOUND CONTAINING ATTACHED TO THE NITROGEN ATOM AN ALKYL RADICAL OF AT LEAST 8 CARBON ATOMS, AND A RADICAL SELECTED FROM THE GROUP CONSISTING OF BENZYL AND HALOGENATED BENZYL.
Claim 2
Dependent Claim
68 words
IN THE PROCESS FOR DYEING ARTICLES PRODUCED FROM A MEMBER SELECTED FROM THE GROUP CONSISTING OF POLYACRYLONITRILE, POLYVINYLIDENE-CYANIDE AND COPOLYMERS THEREOF WITH OTHER VINYL COMPOUNDS, THE IMPROVEMENT WHICH COMPRISES APPLYING ONTO SAID ARTICLES, AS LEVELING AGENT, A QUATERNARY AMMONIUM COMPOUND CONTAINING ATTACHED TO THE NITROGEN ATOM AN ALKYL RADICAL OF AT LEAST 8 CARBON ATOMS, AND A RADICAL SELECTED FROM THE GROUP CONSISTING OF BENZYL AND HALOGENATED BENZYL.
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) | 1964-06-19 | 1964-12-19 | 1965-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-19 | 1968-12-19 | 1969-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-19 | 1972-12-19 | 1973-06-20 | $7700.00 | Window Closed / Lapsed |