Granted Patent
Utility
US 5,681,588 · App. 08/525,749
Delayed release microtablet of .beta.-phenylpropiophenone derivatives
Inventors:
Karl Kolter, Helmut Fricke, Volker Buehler, Herbert Mueller-Peltzer
Patented Case
View Patent ↗
Granted: Oct 28, 1997
Filed: Oct 3, 1995
Inventors
Karl Kolter
Helmut Fricke
Volker Buehler
Herbert Mueller-Peltzer
Assignee (at issue)
Knoll, 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.