Granted Patent
Utility
US 4,287,342 · App. 06/065,701
2,4,6-Trihalo-5-alkyl-and 5-alkenylsulphonylpyrimidines
Inventor:
Karl Hoegerle
Patented Case
View Patent ↗
Granted: Sep 1, 1981
Filed: Aug 10, 1979
Inventor
Karl Hoegerle
Assignee (at issue)
Ciba-Geigy
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.