Granted Patent
Utility
US 4,353,875 · App. 06/183,518
Apparatus for growing crystalline materials
Inventor:
Paul J. Yancey
Patented Case
View Patent ↗
Granted: Oct 12, 1982
Filed: Sep 2, 1980
Inventor
Paul J. Yancey
Assignee (at issue)
ALLIED CONSULTING, 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.