Granted Patent
Utility
US 5,117,769 · App. 07/539,062
Drive shaft apparatus for a susceptor
Inventors:
Wiebe B. deBoer, Albert E. Ozias
Patented Case
View Patent ↗
Granted: Jun 2, 1992
Filed: Jun 15, 1990
Inventors
Wiebe B. deBoer
Albert E. Ozias
Assignee (at issue)
Epsilon Technology Corporation
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.