Granted Patent
Utility
US 6,419,253 · App. 09/563,045
Wheelchair having a double turnbuckle height adjustment
Inventor:
Nick Mascari
Patented Case
View Patent ↗
Granted: Jul 16, 2002
Filed: May 1, 2000
Inventor
Nick Mascari
Assignee (at issue)
INVACARE CORPORATION
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.