Granted Patent
Utility
US 4,775,796 · App. 07/000,703
Treating workpieces with beams
Inventors:
Kenneth H. Purser, Norman L. Turner
Patented Case
View Patent ↗
Granted: Oct 4, 1988
Filed: Jan 6, 1987
Inventors
Kenneth H. Purser
Norman L. Turner
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.