Granted Patent
Utility
US 4,840,322 · App. 07/159,928
Winding of flexible elongate material
Inventors:
Yuichi Masuda, Kozo Shimizu
Patented Case
View Patent ↗
Granted: Jun 20, 1989
Filed: Feb 24, 1988
Inventors
Yuichi Masuda
Kozo Shimizu
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.