Granted Patent
Utility
US 5,114,636 · App. 07/640,493
Process for reducing the internal cross section of elastomeric tubing
Inventors:
Michael Evangelista, Raymond A. Lia
Patented Case
View Patent ↗
Granted: May 19, 1992
Filed: Jan 14, 1991
Inventors
Michael Evangelista
Raymond A. Lia
Assignee (at issue)
Welch Allyn, 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.