Granted Patent
Utility
US 4,196,126 · App. 05/848,174
1-(3-Methyl-5-isothiazolyl)-3-methoxy-3-methylurea
Inventor:
Dennis K. Krass
Patented Case
View Patent ↗
Granted: Apr 1, 1980
Filed: Nov 4, 1977
Inventor
Dennis K. Krass
Assignee (at issue)
PPG Industries, 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.