Granted Patent
Utility
US 4,389,712 · App. 05/885,057
High information density laser image recording method and apparatus
Inventors:
Joseph R. Frattarola, Richard H. Hudgin, Theodore Yachik
Patented Case
View Patent ↗
Granted: Jun 21, 1983
Filed: Mar 9, 1978
Inventors
Joseph R. Frattarola
Richard H. Hudgin
Theodore Yachik
Assignee (at issue)
I-TEK, 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.