Granted Patent
Utility
US 5,750,129 · App. 08/686,471
Composite polymer matrices for controlled release of semiochemicals
Inventor:
David Wakarchuk
Patented Case
View Patent ↗
Granted: May 12, 1998
Filed: Jul 25, 1996
Inventor
David Wakarchuk
Assignee (at issue)
PHERO TECH 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.