Granted Patent
Utility
US 5,778,490 · App. 08/590,936
Tension device for live axle doors
Inventor:
David Bryan Curtis
Patented Case
View Patent ↗
Granted: Jul 14, 1998
Filed: Jan 24, 1996
Inventor
David Bryan Curtis
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.