Granted Patent
Utility
US 5,340,132 · App. 08/023,136
Torsionally stiffened in-line roller skate frame with dual side walls
Inventor:
Andrzej M. Malewicz
Patented Case
View Patent ↗
Granted: Aug 23, 1994
Filed: Feb 24, 1993
Inventor
Andrzej M. Malewicz
Assignee (at issue)
Rollerblade, 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.