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:
Feb. 21, 1978
Filed:
Jan. 02, 1976
Applicant:
Inventors:
Horst Scheuermann, Ludwigshafen, DT;
Albert Hettche, Ludwigshafen, DT;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ; C09K / ; C07D / ;
U.S. Cl.
CPC ...
2602 / ; 2602 / ; 2602 / ; 1062 / ; 25230125 ; 25230126 ; 544126 ;
Abstract
Compounds of the naphthalimide series which in the dissolved condition exhibit a characteristic blue, violet or bluish violet fluorescence, and a process for their production. The compounds are outstandingly suitable for the optical brightening of synthetic fibers.
Scheuermann, Horst. (1978). Naphthalimide compounds and optical brighteners (U.S. Patent No. 4075211). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4075211
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile