Granted Patent
Utility
US 4,233,974 · App. 05/939,851
Spinal needle assembly
Inventors:
Vince C. Desecki, Carl Filipowicz
Patented Case
View Patent ↗
Granted: Nov 18, 1980
Filed: Sep 5, 1978
Inventors
Vince C. Desecki
Carl Filipowicz
Assignee (at issue)
Baxter Travenol 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.