Granted Patent
Utility
US 4,382,978 · App. 06/212,180
Method of laser enhanced thermal diffusion
Inventor:
Bor-Uei Chen
Patented Case
View Patent ↗
Granted: May 10, 1983
Filed: Nov 24, 1980
Inventor
Bor-Uei Chen
Assignee (at issue)
Hughes Aircraft 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.