Granted Patent
Utility
US 5,903,956 · App. 08/972,921
Three-wheel pivot-caster assembly
Inventor:
John L. Theising
Patented Case
View Patent ↗
Granted: May 18, 1999
Filed: Nov 18, 1997
Inventor
John L. Theising
Assignee (at issue)
Emerson Electric Co.
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.