Granted Patent
Utility
US 4,980,133 · App. 07/168,685
Apparatus comprising heat pipes for controlled crystal growth
Inventor:
Mark E. Koch
Patented Case
View Patent ↗
Granted: Dec 25, 1990
Filed: Mar 16, 1988
Inventor
Mark E. Koch
Assignee (at issue)
LTV Aerospace and Defense 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.