The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 08, 2001
Filed:
Apr. 07, 2000
Charles M. Darmon, Spencerport, NY (US);
Jean M. Buongiorne, Brockport, NY (US);
Michael J. Haight, Rochester, NY (US);
Paul A. Schwartz, Webster, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
A homogeneous color developing concentrate comprises a color developing agent in free base form, an antioxidant for the color developing agent and a water-miscible or water-soluble hydroxy-substituted, straight-chain organic solvent. This concentrate is prepared in a unique manner, namely by combining the noted components and removing the sulfate anions commonly present in color developing agents by precipitation with alkali metal ions. The concentrate can be used to prepare photographic processing concentrates and working strength solutions.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile