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US 4,736,032 AGranted
Benzopyrano[6,7,8-i,j]quinolizine-11-one lasing dyes and intermediates for their preparation
AssigneeEastman Kodak Company
InventorsJohn L. Fox, Chin H. Chen
Life of this patent
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Abstract
Novel benzopyrano[6,7,8-i,j]quinolizine-11-one lasing dyes and intermediates for their preparation are disclosed.
Claims5
A tetraloweralkyl substituted benzopyrano[6,7,8-i,j]quinolizine-11-one compound having two gem-diloweralkyl substituents on the quinolizine group.
Dependencies are inferred from the claim text.