US3148934A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for dyeing polyester articles
Assignee: Dow Chemical Co
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Filing: 1961-06-05
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Granted: 1964-09-15
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Expires: 1981-06-05
Abstract
No abstract record available.
Inventors
- 👤 Ronald G Brookens
- 👤 Carl B Havens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:26
CPC Classifications
D; D06; D06P; D06P3/00; D06P3/34; D06P3/52; D06P3/522; D06P1/00; D06P1/44; D06P1/64; D06P1/651; D06P1/65106; D06P1/673; D06P1/67383
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
IN THE PROCESS FOR DYEING AN ARTICLE COMPOSED OF A POLYESTER CONDENSATION POLYMER WHEREIN SAID ARTICLE IS EXPOSED TO AND CONTACTED WITH A LIQUID DYEBATH, THE IMPROVEMENT CONSISTING OF INCLUDING IN SAID DYEBATH FROM 0.1 TO 5.0 PERCENT BY WEIGHT OF SAID ARTICLE TO BE DYED OF AN AGENT SELECTED FROM THE GROUP CONSISTING OF 4-BENZOYL3-HYDROXYPHENYL STEARATE; ISOBUTYL O-(5-CHLOROSALICYLOYL) BENZOATE; 5-CHLORO-2-HYDROXY-4''-T-BUTYLBENZOPHENONE; 4-BENZOYL-3-HYDROXYPHENOL SALICYLATE.
Claim 2
Dependent Claim
63 words
IN THE PROCESS FOR DYEING AN ARTICLE COMPOSED OF A POLYESTER CONDENSATION POLYMER WHEREIN SAID ARTICLE IS EXPOSED TO AND CONTACTED WITH A LIQUID DYEBATH, THE IMPROVEMENT CONSISTING OF INCLUDING IN SAID DYEBATH FROM 0.1 TO 5.0 PERCENT BY WEIGHT OF SAID ARTICLE TO BE DYED OF AN AGENT SELECTED FROM THE GROUP CONSISTING OF 4-BENZOYL3-HYDROXYPHENYL STEARATE; ISOBUTYL O-(5-CHLOROSALICYLOYL) BENZOATE; 5-CHLORO-2-HYDROXY-4''-T-BUTYLBENZOPHENONE; 4-BENZOYL-3-HYDROXYPHENOL SALICYLATE.
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) | 1967-09-15 | 1968-03-16 | 1968-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-15 | 1972-03-16 | 1972-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-15 | 1976-03-16 | 1976-09-15 | $7700.00 | Window Closed / Lapsed |