Granted Patent
Utility
US 6,320,335 · App. 09/538,497
Reciprocating drive device having relative-movement preventing unit
Inventor:
Toshihiro Saitou
Patented Case
View Patent ↗
Granted: Nov 20, 2001
Filed: Mar 30, 2000
Inventor
Toshihiro Saitou
Assignee (at issue)
ASMO CO., LTD.
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.