Granted Patent
Utility
US 4,993,772 · App. 03/482,271
Spring-loaded, dual-action hinge assembly for vehicle accessories
Inventor:
Grace M. Charen
Patented Case
View Patent ↗
Granted: Feb 19, 1991
Filed: Feb 20, 1990
Inventor
Grace M. Charen
Assignee (at issue)
Irvin Automotive Products, LLC
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.