US3764264A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for dyeing polyester fibers with disperse dyestuffs
Assignee: Monsanto Co
•
Filing: 1970-05-25
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Granted: 1973-10-09
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Expires: 1990-05-25
Abstract
Abstract POLYESTER FIBERS PRODUCED FROM DICARBOXYLIC ACIDS, OR REACTIVE DERIVATIVE THEREOF, AND A GLYCOL, AND MODIFIED WITH ALKOXY POLY (OXYALKYLENE) GLYCOLS MAY BE DYED IN A CARRIER-FREE DISPERSE DYEING SYSTEM BY USING DISPERSE DYES OF A MOLECULAR VOLUME NO GREATER THAN THAT DETERMINED BY SYSTEMATIC MEASUREMENT OF PENETRATION OF DYES OF VARIOUS MOLECULAR VOLUME.
Inventors
- 👤 C Bowers
- 👤 J Kimbrell
- 👤 J Williamson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:42
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/0032; D06P3/00; D06P3/34; D06P3/52; D06P3/54; Y; Y10; Y10S; Y10S8/00; Y10S8/907
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) | 1976-10-08 | 1977-04-09 | 1977-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-08 | 1981-04-09 | 1981-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-08 | 1985-04-09 | 1985-10-09 | $7700.00 | Window Closed / Lapsed |