US3266931A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and composition for fixing pigments on fibrous materials
Assignee: Hoechst AG
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Filing: 1962-12-07
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Granted: 1966-08-16
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Expires: 1982-12-07
Abstract
No abstract record available.
Inventors
- 👤 Zimmermann Hans
- 👤 Pfeiffer Gerhard
- 👤 Stetzelberg Kurt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:59
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/547; C07F9/553; C07F9/564; D; D06; D06P; D06P1/00; D06P1/44; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31652; Y10T428/31725; Y10T428/31786; Y10T428/31855; Y10T442/00; Y10T442/20; Y10T442/273
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
65 words
A PROCESS FOR FIXING PIGMENTS ON FIBROUS MATERIALS AND FOILS WHICH COMPRISES APPLYING TO THE MATERIAL TO BE PIGMENTED, AN AQUEOUS COMPOSITION COMPRISING (A) AN INSOLUBLE, INERT PIGMENT, (B) A RESINOUS ALKALI-SOLUTION CONDENSATION PRODUCT OF A POLYBASIC CARBOXYLIC ACID AND A POLYHYDRIC ALCOHOL, SAID CONDENSATION PRODUCT CONTAINING REACTIVE CARBOXYLIC GROUPS AND DISSOLVED IN AN ALKALINE MEDIUM, AND (C) AN N-(DIALKYLENE IMIDO PHOSPHONYL)UREA OF THE FORMULA
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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) | 1969-08-15 | 1970-02-14 | 1970-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-15 | 1974-02-14 | 1974-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-15 | 1978-02-14 | 1978-08-16 | $7700.00 | Window Closed / Lapsed |