Granted Patent
Utility
US 4,896,385 · App. 07/236,655
Bunk bed frame
Inventor:
Rafael T. Bustos
Patented Case
View Patent ↗
Granted: Jan 30, 1990
Filed: Aug 25, 1988
Inventor
Rafael T. Bustos
Assignee (at issue)
LEGGETT & PLATT, INC.
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.