Granted Patent
Utility
US 6,820,876 · App. 10/385,054
Boot for universal joint
Inventor:
Kazuhiro Iwano
Patented Case
View Patent ↗
Granted: Nov 23, 2004
Filed: Mar 10, 2003
Inventor
Kazuhiro Iwano
Assignee (at issue)
SHOWA 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.