US2995412A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for dyeing and printing of textile materials containing hydroxyl groups
Assignee: Bayer AG
•
Filing: 1958-07-08
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Granted: 1961-08-08
•
Expires: 1978-07-08
Abstract
No abstract record available.
Inventors
- 👤 Kleb Karl Gustav
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:08
CPC Classifications
D; D06; D06P; D06P3/00; D06P3/58; D06P3/60; D06P3/66; D06P3/666
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
33 words
PROCESS FOR THE DYEING AND PRINTING OF CELLULOSECONTAINING TEXTILE MATERIALS WHICH COMPRISES APPLYING TO THESE MATERIALS DYESTUFFS FREE FROM SULFONIC ACID AND CARBOXYLIC ACID GROUPS, AND CONTAINING AT LEAST ONCE THE FOLLOWING GROUPING
Claim 2
Dependent Claim
33 words
PROCESS FOR THE DYEING AND PRINTING OF CELLULOSECONTAINING TEXTILE MATERIALS WHICH COMPRISES APPLYING TO THESE MATERIALS DYESTUFFS FREE FROM SULFONIC ACID AND CARBOXYLIC ACID GROUPS, AND CONTAINING AT LEAST ONCE THE FOLLOWING GROUPING
References Cited (Backward Citations)
US2670265A
Cited
US2424493A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-07 | 1965-02-06 | 1965-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-07 | 1969-02-06 | 1969-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-07 | 1973-02-06 | 1973-08-08 | $7700.00 | Window Closed / Lapsed |