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:
Jun. 02, 1981
Filed:
Jan. 03, 1978
Applicant:
Inventors:
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S / ;
U.S. Cl.
CPC ...
331 / ; 25230117 ;
Abstract
Laser light in the wavelength range of 420-480 nm is obtained with a dyestuff laser containing a dyestuff of the general formula ##STR1## wherein R and R.sub.1 independently of one another represent ##STR2## R.sub.2 denotes an optionally substituted alkyl radical with 1-4 C atoms, R.sub.3 and R.sub.4 independently of one another represent hydrogen or optionally substituted C.sub.1 -C.sub.4 -alkyl or conjointly with the nitrogen can form a 5-membered or 6-membered heterocyclic ring and