Granted Patent
Utility
US 4,297,310 · App. 06/093,126
Process for producing electric conductors coated with crosslinked polyethylene resin
Inventors:
Susumu Akutsu, Tsutomu Isaka, Mitsugu Ishioka
Patented Case
View Patent ↗
Granted: Oct 27, 1981
Filed: Nov 13, 1979
Inventors
Susumu Akutsu
Tsutomu Isaka
Mitsugu Ishioka
Assignee (at issue)
Mitsubishi Petrochemical Company Limited
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.