Granted Patent
Utility
US 5,620,253 · App. 08/509,678
Method of determining the thermal resistivity of electrically insulating crystalline materials
Inventors:
John Edwin Graebner, Sungho Jin
Patented Case
View Patent ↗
Granted: Apr 15, 1997
Filed: Jul 31, 1995
Inventors
John Edwin Graebner
Sungho Jin
Assignee (at issue)
LUCENT TECHNOLOGIES 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.