Granted Patent
Utility
US 4,688,060 · App. 06/826,016
Pressure sensitive manifold paper
Inventors:
Masato Tanaka, Shinsuke Irii, Tomoharu Shiozaki
Patented Case
View Patent ↗
Granted: Aug 18, 1987
Filed: Feb 4, 1986
Inventors
Masato Tanaka
Shinsuke Irii
Tomoharu Shiozaki
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.