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. 18, 1993
Filed:
Sep. 27, 1991
Andrew F Hoffmann, Walworth, NY (US);
Richard W Bauer, Jr, Rochester, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
Bromide ion content in a photographic developer is an important variable to be controlled by photoprocessors who process color reversal material or color negative film. The bromide content of such developers can be determined by titration with silver ion, using tetraiodophenolsulfonephthalein (TIPS) or other suitable adsorption indicator, after the developer has been acidified with an organic acid such as citric acid. This titrimetric method can be adapted for use in a test kit which is designed for use by photoprocessors who otherwise lack the chemical sophistication to readily conduct analysis by titration, or who have the necessary sophistication, but wish to gain the benefits and convenience available from use of a test kit specifically designed for conducting the analytical method.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile