Granted Patent
Utility
US 4,621,129 · App. 06/800,127
Process for producing melting-anisotropic, copolymerized polyester
Inventors:
Tamotsu Yoshimura, Masahiko Nakamura, Ken Honma
Patented Case
View Patent ↗
Granted: Nov 4, 1986
Filed: Oct 31, 1985
Inventors
Tamotsu Yoshimura
Masahiko Nakamura
Ken Honma
Assignee (at issue)
Mitsubishi Chemical Industries, 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.