Granted Patent
Utility
US 4,821,674 · App. 07/032,474
Rotatable substrate supporting mechanism with temperature sensing device for use in chemical vapor deposition equipment
Inventors:
Wiebe B. deBoer, Albert E. Ozias
Patented Case
View Patent ↗
Granted: Apr 18, 1989
Filed: Mar 31, 1987
Inventors
Wiebe B. deBoer
Albert E. Ozias
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.