Granted Patent
Utility
US 6,474,869 · App. 09/661,656
Bushing
Inventors:
Dean R. Sommerfeld, Todd C. Kramer
Patented Case
View Patent ↗
Granted: Nov 5, 2002
Filed: Sep 14, 2000
Inventors
Dean R. Sommerfeld
Todd C. Kramer
Assignee (at issue)
Sunrise Medical HHG, 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.