US3049392A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for dyeing nitrogenous mate-
Assignee: —
•
Filing: —
•
Granted: 1962-08-14
•
Expires: 1979-08-14
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:01
CPC Classifications
C; C09; C09B; C09B47/00; C09B47/04; C09B47/08; C09B47/24; C09B47/26; Y; Y10; Y10S; Y10S8/00; Y10S8/907; Y10S8/916; Y10S8/917
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
33 words
A PROCESS FOR DYEING NITROGENOUS FIBROUS MATERIAL, WHICH COMPRISES SUBJECTING SAID MATERIAL TO TREATEMENT IN AN ACID BATH CONTAINING A SULFONATE COPPER PHTHALOCYANINE IN THE PRESENCE OF AN AUXILIARY COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
33 words
A PROCESS FOR DYEING NITROGENOUS FIBROUS MATERIAL, WHICH COMPRISES SUBJECTING SAID MATERIAL TO TREATEMENT IN AN ACID BATH CONTAINING A SULFONATE COPPER PHTHALOCYANINE IN THE PRESENCE OF AN AUXILIARY COMPOUND OF THE FORMULA
References Cited (Backward Citations)
US1970578A
Cited
US2484300A
Cited
US2681845A
Cited
US2761868A
Cited
US2914538A
Cited
US2967755A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-13 | 1966-02-12 | 1966-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-13 | 1970-02-12 | 1970-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-13 | 1974-02-12 | 1974-08-14 | $7700.00 | Window Closed / Lapsed |