Granted Patent
Utility
US 4,955,210 · App. 07/398,811
Capillary tube assembly and method of manufacture
Inventor:
William G. Hansen
Patented Case
View Patent ↗
Granted: Sep 11, 1990
Filed: Aug 25, 1989
Inventor
William G. Hansen
Assignee (at issue)
American Standard 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.