Granted Patent
Utility
US 4,618,975 · App. 06/684,950
Method and apparatus for analyzing a porous nonhomogeneous cylindrical object
Inventor:
Werner J. Glantschnig
Patented Case
View Patent ↗
Granted: Oct 21, 1986
Filed: Dec 21, 1984
Inventor
Werner J. Glantschnig
Assignee (at issue)
AT&T Technologies Incorporated
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.