Granted Patent
Utility
US 4,328,283 · App. 06/093,200
Photographic polyester supports subjected to subbing treatment
Inventors:
Takanori Nakadate, Naoto Abe, Kenichi Kitahara, Hironobu Nakao
Patented Case
View Patent ↗
Granted: May 4, 1982
Filed: Nov 13, 1979
Inventors
Takanori Nakadate
Naoto Abe
Kenichi Kitahara
Hironobu Nakao
Assignee (at issue)
Konishiroku Photo Industry Co., 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.