Granted Patent
Utility
US 4,726,318 · App. 06/813,828
Method of and apparatus for dyeing parts molded of synthetic resin
Inventor:
Yoshimichi Yamakita
Patented Case
View Patent ↗
Granted: Feb 23, 1988
Filed: Dec 27, 1985
Inventor
Yoshimichi Yamakita
Assignees (at issue)
Yoshida Kogyo K.K.
Nissen 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.