Granted Patent
Utility
US 5,931,666 · App. 09/031,887
Slip free vertical rack design having rounded horizontal arms
Inventor:
Richard R. Hengst
Patented Case
View Patent ↗
Granted: Aug 3, 1999
Filed: Feb 27, 1998
Inventor
Richard R. Hengst
Assignee (at issue)
Saint-Gobain Industrial Ceramics, 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.