US3148933A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for coloring fibers with fiber reactive phthalocyanine dyestuffs and products obtained thereby
Assignee: GAF Chemicals Corp
•
Filing: 1961-12-19
•
Granted: 1964-09-15
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Expires: 1981-12-19
Abstract
No abstract record available.
Inventors
- 👤 David I Randall
- 👤 Schmidt-Nickels Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:21
CPC Classifications
C; C09; C09B; C09B62/00; C09B62/44; C09B62/78; C09B62/84; Y; Y10; Y10S; Y10S8/00; Y10S8/916; Y10S8/918
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
34 words
IN A PROCESS FOR COLORING FIBERS CONTAINING A REACTIVE HYDROGEN ATOM, THE STEP OF TREATING THE FIBERS: (1) UNDER ACID BINDING CONDITIONS, WITH (2) AN AQUEOUS DISPERSION OF A (3) COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
34 words
IN A PROCESS FOR COLORING FIBERS CONTAINING A REACTIVE HYDROGEN ATOM, THE STEP OF TREATING THE FIBERS: (1) UNDER ACID BINDING CONDITIONS, WITH (2) AN AQUEOUS DISPERSION OF A (3) COMPOUND OF THE FORMULA
References Cited (Backward Citations)
US3053849A
Cited
US3062830A
Cited
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 |