Granted Patent
Utility
US 5,470,112 · App. 08/328,022
Adjustable coupling ring
Inventor:
Henry M. Keating
Patented Case
View Patent ↗
Granted: Nov 28, 1995
Filed: Oct 24, 1994
Inventor
Henry M. Keating
Assignee (at issue)
Keating Koupling, 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.