Granted Patent
Utility
US 6,493,887 · App. 09/974,234
Box spring corner guard
Inventors:
Michael S. DeFranks, Richard F. Gladney
Patented Case
View Patent ↗
Granted: Dec 17, 2002
Filed: Oct 10, 2001
Inventors
Michael S. DeFranks
Richard F. Gladney
Assignee (at issue)
DREAMWELL, LTD.
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.