Granted Patent
Utility
US 5,878,455 · App. 08/009,793
Corner guard for mattress
Inventor:
Ken Patterson
Patented Case
View Patent ↗
Granted: Mar 9, 1999
Filed: Jan 21, 1998
Inventor
Ken Patterson
Assignee (at issue)
Chattam & Wells
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.