Granted Patent
Utility
US 4,569,675 · App. 06/531,038
Transcutaneous infusion system
Inventors:
Frank R. Prosl, Joseph J. Szymanski
Patented Case
View Patent ↗
Granted: Feb 11, 1986
Filed: Sep 12, 1983
Inventors
Frank R. Prosl
Joseph J. Szymanski
Assignee (at issue)
Infusaid, 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.