US3232927A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water soluble organic dyestuffs
Assignee: GAF Chemicals Corp
•
Filing: 1962-12-31
•
Granted: 1966-02-01
•
Expires: 1982-12-31
Abstract
No abstract record available.
Inventors
- 👤 Randall David Irwin
- 👤 Schmidt-Nickels Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:19
CPC Classifications
C; C09; C09B; C09B62/00; C09B62/44; C09B62/465
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A WATER SOLUBLE ORGANIC DYESTUFF OF THE FORMULA C(-CO-CH2-CH2-X)N WHEREIN D IS SELECTED FROM THE GROUP CONSISTING OF WATER SOLUBLE AZO, ANTHRAQUINONE AND PHTHALOCYANINE DYESTUFF MOIETIES AND IS JOINED THROUGH A NUCLEAR CARBON ATOM THEREOF TO BE DEPICTED PARENTHETICAL RADICAL; X IS THE ANION OF A STRONG ACID HAVING A DISSOCIATION CONSTANT GREATER THAN 2.0X10**-5 AND SELECTED FROM GROUP CONSISTING OF SULFURIC, HYDROCHLORIC, HYDROBROMIC, HYDROFLUORIC, IODIC, PHOSPHORIC PHOSPHONIC, PHOSPHINIC, ORGANIC SULFONYLOXY, TRICHLOROACETIC, DICHLORRACETIC, CHLOROACETIC, AND FORMIC ACIDS; AND N IS AN INTEGER OF 1 TO 4.
Claim 2
Dependent Claim
86 words
A WATER SOLUBLE ORGANIC DYESTUFF OF THE FORMULA C(-CO-CH2-CH2-X)N WHEREIN D IS SELECTED FROM THE GROUP CONSISTING OF WATER SOLUBLE AZO, ANTHRAQUINONE AND PHTHALOCYANINE DYESTUFF MOIETIES AND IS JOINED THROUGH A NUCLEAR CARBON ATOM THEREOF TO BE DEPICTED PARENTHETICAL RADICAL; X IS THE ANION OF A STRONG ACID HAVING A DISSOCIATION CONSTANT GREATER THAN 2.0X10**-5 AND SELECTED FROM GROUP CONSISTING OF SULFURIC, HYDROCHLORIC, HYDROBROMIC, HYDROFLUORIC, IODIC, PHOSPHORIC PHOSPHONIC, PHOSPHINIC, ORGANIC SULFONYLOXY, TRICHLOROACETIC, DICHLORRACETIC, CHLOROACETIC, AND FORMIC ACIDS; AND N IS AN INTEGER OF 1 TO 4.
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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) | 1969-01-31 | 1969-08-02 | 1970-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-31 | 1973-08-02 | 1974-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-31 | 1977-08-02 | 1978-02-01 | $7700.00 | Window Closed / Lapsed |