Granted Patent
Utility
US 5,320,396 · App. 08/047,660
Stake for flatbed trailers
Inventor:
Brian W. Petelka
Patented Case
View Patent ↗
Granted: Jun 14, 1994
Filed: Apr 19, 1993
Inventor
Brian W. Petelka
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.