Granted Patent
Utility
US 5,283,796 · App. 07/871,888
Phase plate or spiral phase wheel driven linear frequency chirped laser
Inventor:
David Fink
Patented Case
View Patent ↗
Granted: Feb 1, 1994
Filed: Apr 21, 1992
Inventor
David Fink
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.