Granted Patent
Utility
US 5,197,322 · App. 07/619,858
Pressure reservoir filling process for an implantable medication infusion pump
Inventor:
Virote Indravudh
Patented Case
View Patent ↗
Granted: Mar 30, 1993
Filed: Nov 29, 1990
Inventor
Virote Indravudh
Assignee (at issue)
MiniMed Technologies, Ltd.
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.