US2768055A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition for aftertreatment of dyeings
Assignee: GAF Chemicals Corp
•
Filing: 1952-11-15
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Granted: 1956-10-23
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Expires: 1972-11-15
Abstract
No abstract record available.
Inventors
- 👤 Streck Clemens
- 👤 Lester N Stanley
- 👤 Alois C Baggenstoss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:14
CPC Classifications
D; D06; D06P; D06P5/00; D06P5/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A COMPOSITION FOR AFTERTREATING DYEINGS AND PRINTS COMPRISING ABOUT 10 TO 100 PARTS BY WEIGHT OF A WATERSOLUBLE, NON-COMPLEX COPPER SALT SELECTED FROM THE GROUP CONSISTING OF COPPER ACETATE, COPPER CHLORIDE AND COPPER AMMONIUM CHLORIDE, ABOUT 10 TO 50 PARTS BY WEIGHT OF AN ALKALI METAL ACETATE BUFFERING AGENT, AND ABOUT 100 PARTS BY WEIGHT OF AN ACIDIC CONDENSATION PRODUCT OF ABOUT 1.5 TO 2.5 MOLES OF FORMALDEHYDE, ABOUT 1 MOLE OF DICYANDIAMIDE AND ABOUT 0.5 TO 1 MOLE OF A WATERSOLUBLE, EASILY IONIZABLE AMMONIUM SALT.
Claim 2
Dependent Claim
86 words
A COMPOSITION FOR AFTERTREATING DYEINGS AND PRINTS COMPRISING ABOUT 10 TO 100 PARTS BY WEIGHT OF A WATERSOLUBLE, NON-COMPLEX COPPER SALT SELECTED FROM THE GROUP CONSISTING OF COPPER ACETATE, COPPER CHLORIDE AND COPPER AMMONIUM CHLORIDE, ABOUT 10 TO 50 PARTS BY WEIGHT OF AN ALKALI METAL ACETATE BUFFERING AGENT, AND ABOUT 100 PARTS BY WEIGHT OF AN ACIDIC CONDENSATION PRODUCT OF ABOUT 1.5 TO 2.5 MOLES OF FORMALDEHYDE, ABOUT 1 MOLE OF DICYANDIAMIDE AND ABOUT 0.5 TO 1 MOLE OF A WATERSOLUBLE, EASILY IONIZABLE AMMONIUM SALT.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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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) | 1959-10-23 | 1960-04-23 | 1960-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-23 | 1964-04-23 | 1964-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-23 | 1968-04-23 | 1968-10-23 | $7700.00 | Window Closed / Lapsed |