Granted Patent
Utility
US 4,547,885 · App. 06/492,501
Active pressure regulator for a gas laser
Inventors:
Peter N. Allen, William Blake
Patented Case
View Patent ↗
Granted: Oct 15, 1985
Filed: May 6, 1983
Inventors
Peter N. Allen
William Blake
Assignee (at issue)
Coherent, 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.