Granted Patent
Utility
US 5,194,435 · App. 07/932,139
4-arylmethyl-5-alkyl-3h-pyrazol-3-ones
Inventor:
Kenneth L. Kees
Patented Case
View Patent ↗
Granted: Mar 16, 1993
Filed: Aug 19, 1992
Inventor
Kenneth L. Kees
Assignee (at issue)
Amerimas Home Products, 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.