Granted Patent
Utility
US 4,893,503 · App. 07/208,417
Method of measuring adhesive strength of adhesive sheet and apparatus for implementing this method
Inventors:
Akira Kimura, Osamu Tomita
Patented Case
View Patent ↗
Granted: Jan 16, 1990
Filed: May 17, 1988
Inventors
Akira Kimura
Osamu Tomita
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.