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:
Oct. 23, 1979
Filed:
Sep. 23, 1977
Applicant:
Inventors:
Louis Cincotta, Andover, MA (US);
James W Foley, Andover, MA (US);
Marcis M Kampe, Brookline, MA (US);
Assignee:
Polaroid Corporation, Cambridge, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
260338 ; 548207 ;
Abstract
This invention relates to carbocyclic aryl compounds substituted with a tetrahydro-2H,4H-1,3,6-dioxazocino moiety and to the preparation thereof. These compounds are useful as intermediates in the synthesis of certain 3,3-disubstituted-2,3-dihydrobenz[d]isothiazole-1,1-dioxide dyes which find utility as, for example, photographic optical filter agents and filter agent precursors.