Granted Patent
Utility
US 4,883,718 · App. 07/159,850
Flexible copper-clad circuit substrate
Inventors:
Masahiro Ohta, Saburo Kawashima, Yoshiho Snobe, Shoji Tamai, Hideaki Oikawa, Akihiro Yamaguchi
Patented Case
View Patent ↗
Granted: Nov 28, 1989
Filed: Feb 5, 1988
Inventors
Masahiro Ohta
Saburo Kawashima
Yoshiho Snobe
Shoji Tamai
Hideaki Oikawa
Akihiro Yamaguchi
Assignee (at issue)
Mitsui Toatsu Chemicals, Incorporated
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.