Granted Patent
Utility
US 4,557,673 · App. 06/662,254
Implantable pump
Inventors:
Herbert Chen, Michael G. Conley
Patented Case
View Patent ↗
Granted: Dec 10, 1985
Filed: Oct 17, 1984
Inventors
Herbert Chen
Michael G. Conley
Assignee (at issue)
Novacor Medical 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.