Granted Patent
Utility
US 4,894,582 · App. 07/257,377
Method and apparatus for enhancing spark channel recovery by spark-generated unsteady flows
Inventor:
William J. Thayer, III
Patented Case
View Patent ↗
Granted: Jan 16, 1990
Filed: Oct 12, 1988
Inventor
William J. Thayer, III
Assignee (at issue)
Spectra-Physics, 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.