Granted Patent
Utility
US 4,298,652 · App. 06/147,825
Method of producing medium-grade coated paper for rotogravure printing
Inventors:
Kuzuhiko Suzuki, Yasuhiro Fujiki, Tojiro Kitahori, Akira Takada
Patented Case
View Patent ↗
Granted: Nov 3, 1981
Filed: May 8, 1980
Inventors
Kuzuhiko Suzuki
Yasuhiro Fujiki
Tojiro Kitahori
Akira Takada
Assignee (at issue)
Kanzaki Paper Manufacturing 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.