Granted Patent
Utility
US 5,714,439 · App. 08/653,962
Propanil dispersible granule
Inventors:
Richard David Houghton, Linda Graham, David Prescott Krutsch
Patented Case
View Patent ↗
Granted: Feb 3, 1998
Filed: May 28, 1996
Inventors
Richard David Houghton
Linda Graham
David Prescott Krutsch
Assignee (at issue)
Rohm and Haas 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.