Granted Patent
Utility
US 4,877,169 · App. 07/168,786
Self-tightening vehicle roof rack
Inventor:
Michael Grim
Patented Case
View Patent ↗
Granted: Oct 31, 1989
Filed: Mar 15, 1988
Inventor
Michael Grim
Assignee (at issue)
Yakima Products, 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.