US2967755A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Leveling and stripping agents
Assignee: Sandoz AG
•
Filing: 1958-01-30
•
Granted: 1961-01-10
•
Expires: 1978-01-30
Abstract
No abstract record available.
Inventors
- 👤 Keller Robert Christian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:52
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/44; D06P1/64; D06P1/642; D06P1/645; D06P1/38; D06P3/00; D06P3/58; D06P3/60; D06P3/66
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
60 words
A METHOD OF CARRYING OUT A TEXTILE MATERIAL-DYEING OPERATION IN AN AQUEOUS BATH CONTAINING A DYESTUFF WHICH IS APPLICABLE TO THE TEXTILE MATERIAL, WHICH COMPRISES IMMERSING THE TEXTILE MATERIAL IN THE SAID BATH IN THE PRESENCE IN THE BATH OF A WATER-SOLUBLE COMPOUND, THE CATION OF WHICH CORRESPONDS, UPON COMPLETE DISSOCIATION OF THE COMPOUND IN AQUEOUS SOLUTION TO THE FORMULA
References Cited (Backward Citations)
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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) | 1964-01-10 | 1964-07-11 | 1965-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-10 | 1968-07-11 | 1969-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-10 | 1972-07-11 | 1973-01-10 | $7700.00 | Window Closed / Lapsed |