Granted Patent
Utility
US 6,000,770 · App. 09/231,237
Library book bin with a vertically adjustable floor
Inventor:
Mark R. Frich
Patented Case
View Patent ↗
Granted: Dec 14, 1999
Filed: Jan 15, 1999
Inventor
Mark R. Frich
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.