Granted Patent
Utility
US 4,857,099 · App. 06/864,931
Terrestrial and aquatic herbicidal methods
Inventors:
Jerome M. Lavanish, Barry Van Gemert
Patented Case
View Patent ↗
Granted: Aug 15, 1989
Filed: May 19, 1986
Inventors
Jerome M. Lavanish
Barry Van Gemert
Assignee (at issue)
American Cyanamid Company
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.