Granted Patent
Utility
US 4,874,015 · App. 07/294,758
Monitoring system
Inventor:
Manfred Schirmacher
Patented Case
View Patent ↗
Granted: Oct 17, 1989
Filed: Jan 6, 1989
Inventor
Manfred Schirmacher
Assignee (at issue)
SCHERING CORPORATION
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.