Granted Patent
Utility
US 4,485,014 · App. 06/445,630
Filter assembly for connecting intermediate an epidural cannula and a syringe
Inventors:
Keith Gilroy, Mark Johnson
Patented Case
View Patent ↗
Granted: Nov 27, 1984
Filed: Nov 30, 1982
Inventors
Keith Gilroy
Mark Johnson
Assignee (at issue)
Smiths Industries Public Limited Company
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.