Granted Patent
Utility
US 4,297,190 · App. 06/211,603
Method for removing heat from a workpiece during processing in a vacuum chamber
Inventor:
Robert Wade Garrett
Patented Case
View Patent ↗
Granted: Oct 27, 1981
Filed: Dec 1, 1980
Inventor
Robert Wade Garrett
Assignee (at issue)
Western Electric Company, 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.