Granted Patent
Utility
US 4,448,982 · App. 06/485,539
Selective process for the preparation of hydroxy alkyl phenoxy benzoates
Inventors:
Kou-Chang Liu, Michael J. Brown
Patented Case
View Patent ↗
Granted: May 15, 1984
Filed: Apr 15, 1983
Inventors
Kou-Chang Liu
Michael J. Brown
Assignee (at issue)
GAF Corporation
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.