Granted Patent
Utility
US 5,018,506 · App. 07/539,232
Fluid controlled biased bending neck
Inventors:
Dominick Danna, Allan I. Krauter, Raymond A. Lia
Patented Case
View Patent ↗
Granted: May 28, 1991
Filed: Jun 18, 1990
Inventors
Dominick Danna
Allan I. Krauter
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.