US2933365A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dyeing and chemical modification of keratins
Assignee: Individual
•
Filing: 1957-11-20
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Granted: 1960-04-19
•
Expires: 1977-11-20
Abstract
No abstract record available.
Inventors
- 👤 Joseph E Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:30
CPC Classifications
D; D06; D06P; D06P3/00; D06P3/006; D06M; D06M13/00; D06M13/322; D06M13/402; D06M13/415; D06P3/02; D06P3/04; D06P3/14; Y; Y10; Y10S; Y10S8/00; Y10S8/916; Y10S8/917
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
A METHOD OF DYEING AND CHEMICALLY MODIFYING A KERATINOUS MATERIAL WHICH COMPRISES REACTING AND KERATINOUS MATERIAL IN A REDUCED STATE WITH A COMPOUND CONTAINING AN ACYL-NITROGEN GROUP LINKED THROUGH THE NITROGEN TO AN AROMATIC GROUP, THE ACYL RADICAL CONTAINING AN OLEFIN DOUBLE BOND BETWEEN TWO CARBON ATOMS ONE OF WHICH IS DIRECTLY LINKED TO THE NON-OXO CARBONYL GROUP OF SAID ACYL-NITROGEN GROUP, AND WHEREIN THE AROMATIC GROUP CONTAINS A CHROMOPHORE GROUP SELECED FROM THE CLASS CONSISTING OF AZO, NITROSO, AZOXY, NITRO, AND AZOMETHINE.
Claim 2
Independent Claim
83 words
A METHOD OF DYEING AND CHEMICALLY MODIFYING A KERATINOUS MATERIAL WHICH COMPRISES REACTING AND KERATINOUS MATERIAL IN A REDUCED STATE WITH A COMPOUND CONTAINING AN ACYL-NITROGEN GROUP LINKED THROUGH THE NITROGEN TO AN AROMATIC GROUP, THE ACYL RADICAL CONTAINING AN OLEFIN DOUBLE BOND BETWEEN TWO CARBON ATOMS ONE OF WHICH IS DIRECTLY LINKED TO THE NON-OXO CARBONYL GROUP OF SAID ACYL-NITROGEN GROUP, AND WHEREIN THE AROMATIC GROUP CONTAINS A CHROMOPHORE GROUP SELECED FROM THE CLASS CONSISTING OF AZO, NITROSO, AZOXY, NITRO, AND AZOMETHINE.
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) | 1963-04-19 | 1963-10-19 | 1964-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-19 | 1967-10-19 | 1968-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-19 | 1971-10-19 | 1972-04-19 | $7700.00 | Window Closed / Lapsed |