Granted Patent
Utility
US 6,413,504 · App. 09/610,098
Alpha-arylated cinnamic esters and 1,4-bis(alpha-carboxyl-beta-styryl)benzene esters an UV-blocking agents
Inventors:
Frederick J. Lakner, Bishwajit Nag, Partha Neogi
Patented Case
View Patent ↗
Granted: Jul 2, 2002
Filed: Jun 30, 2000
Inventors
Frederick J. Lakner
Bishwajit Nag
Partha Neogi
Assignee (at issue)
Calyx Therapeutics, Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.