US3097046A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and composition for dye-leveling
Assignee: Dow Chemical Co
•
Filing: 1960-08-24
•
Granted: 1963-07-09
•
Expires: 1980-08-24
Abstract
No abstract record available.
Inventors
- 👤 Wilhelm E Walles
- 👤 William F Tousignant
- 👤 Lamar C Cloninger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:43
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/44; D06P1/52; D06P1/5207; D06P1/5214; D06P1/5242; Y; Y10; Y10S; Y10S8/00; Y10S8/916; Y10S8/917; Y10S8/918; Y10S8/92; Y10S8/921
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
IN THE METHOD OF DYEING A TEXTILE ARTICLE, THE IMPROVEMENT OF EFFECTING A MORE LEVEL DYEING WICH CONSISTS ESSENTIALLY OF DISSOLVING IN THE DYEBATH WITH THE DYESTUFF POLY-N-VINYL-5-METHYL-2-OXAZOLIDINONE AND DYEING SAID TEXTILE ARTICLE WITH SAID DYESTUFF IN THE PRESENCE OF SAID POLY-N-VINYL-5-METHYL-2-OXAZOLIDINONE.
Claim 2
Dependent Claim
42 words
IN THE METHOD OF DYEING A TEXTILE ARTICLE, THE IMPROVEMENT OF EFFECTING A MORE LEVEL DYEING WICH CONSISTS ESSENTIALLY OF DISSOLVING IN THE DYEBATH WITH THE DYESTUFF POLY-N-VINYL-5-METHYL-2-OXAZOLIDINONE AND DYEING SAID TEXTILE ARTICLE WITH SAID DYESTUFF IN THE PRESENCE OF SAID POLY-N-VINYL-5-METHYL-2-OXAZOLIDINONE.
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) | 1966-07-08 | 1967-01-07 | 1967-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-08 | 1971-01-07 | 1971-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-08 | 1975-01-07 | 1975-07-09 | $7700.00 | Window Closed / Lapsed |