Granted Patent
Utility
US 4,681,606 · App. 06/833,892
Drip chamber
Inventors:
Jack C. Swan, Jr., Paolo Poggioli
Patented Case
View Patent ↗
Granted: Jul 21, 1987
Filed: Feb 26, 1986
Inventors
Jack C. Swan, Jr.
Paolo Poggioli
Assignee (at issue)
Cobe Laboratories, 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.