IP Library Granted Patent US 5,573,213
Granted Patent Utility
US 5,573,213 · App. 08/426,970

Walker glide

Inventors: Richard E. Henderson, Kathleen O'Brien
Patented Case View Patent ↗
Granted: Nov 12, 1996 Filed: Apr 24, 1995
Inventors
Richard E. Henderson
Kathleen O'Brien

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.

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Quick Facts
Patent No.
US 5,573,213
App. No.
08/426,970
Filed
1995-04-24
Granted
1996-11-12
Kind
A