Granted Patent
Utility
US 4,944,166 · App. 07/391,963
Dyeing apparatus
Inventor:
Yoshimichi Yamakita
Patented Case
View Patent ↗
Granted: Jul 31, 1990
Filed: Aug 10, 1989
Inventor
Yoshimichi Yamakita
Assignee (at issue)
Yoshida Kogyo K.K.
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.