Granted Patent
Utility
US 5,458,002 · App. 08/243,254
Viscoelastic material testing system
Inventors:
Donald W. Askea, Jeffrey Johnson
Patented Case
View Patent ↗
Granted: Oct 17, 1995
Filed: May 16, 1994
Inventors
Donald W. Askea
Jeffrey Johnson
Assignee (at issue)
B. F. Goodrich Company
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.