Granted Patent
Utility
US 4,765,771 · App. 07/050,723
Apparatus for inserting sealing strip into concrete expansion joints
Inventor:
Michael J. Howsley
Patented Case
View Patent ↗
Granted: Aug 23, 1988
Filed: May 15, 1987
Inventor
Michael J. Howsley
Assignee (at issue)
JMK International, 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.