Granted Patent
Utility
US 5,649,912 · App. 08/603,563
Ampule filling device
Inventor:
Steven F. Peterson
Patented Case
View Patent ↗
Granted: Jul 22, 1997
Filed: Feb 21, 1996
Inventor
Steven F. Peterson
Assignee (at issue)
Bioject 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.