Granted Patent
Utility
US 5,154,085 · App. 07/748,859
Tension type dynamic viscoelasticity measuring apparatus
Inventor:
Haruo Takeda
Patented Case
View Patent ↗
Granted: Oct 13, 1992
Filed: Aug 23, 1991
Inventor
Haruo Takeda
Assignee (at issue)
SEIKO INSTRUMENTS INC.
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.