Granted Patent
Utility
US 4,953,174 · App. 07/425,264
Preionization electrode for pulsed gas laser
Inventors:
Robert E. Eldridge, David B. Cohn, Wayde H. Affleck
Patented Case
View Patent ↗
Granted: Aug 28, 1990
Filed: Oct 23, 1989
Inventors
Robert E. Eldridge
David B. Cohn
Wayde H. Affleck
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.