US2587597A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for removal of pigments from printed textiles and agents useful therein
Assignee: Arkansas Co Inc
•
Filing: 1949-07-14
•
Granted: 1952-03-04
•
Expires: 1969-07-14
Abstract
No abstract record available.
Inventors
- 👤 Alton A Cook
- 👤 Sapers Ira
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:02
CPC Classifications
D; D06; D06P; D06P5/00; D06P5/13; D06P5/138
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
36 words
A PROCESS OF REMOVING IMPRINTED PHTHALOCYANINE PIGMENTS EMBODIED IN WATER INSOLUBLE RESINOUS BINDERS FROM TEXTILES, WHICH COMPRISES IMMERSING THE FABRICS IN AN AQUEOUS DISPERSION CONTAINING A QUATERNARY AMMONIUM COMPOUND, CAUSTIC SODA AND AN ALKALI METAL HYDROSULFITE.
Claim 2
Dependent Claim
36 words
A PROCESS OF REMOVING IMPRINTED PHTHALOCYANINE PIGMENTS EMBODIED IN WATER INSOLUBLE RESINOUS BINDERS FROM TEXTILES, WHICH COMPRISES IMMERSING THE FABRICS IN AN AQUEOUS DISPERSION CONTAINING A QUATERNARY AMMONIUM COMPOUND, CAUSTIC SODA AND AN ALKALI METAL HYDROSULFITE.
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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) | 1955-03-04 | 1955-09-03 | 1956-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-04 | 1959-09-03 | 1960-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-04 | 1963-09-03 | 1964-03-04 | $7700.00 | Window Closed / Lapsed |