Granted Patent
Utility
US 4,248,521 · App. 06/077,895
Electrographic recording apparatus and method
Inventors:
Lee R. Brown, Jose L. Herrera, John D. Plumadore
Patented Case
View Patent ↗
Granted: Feb 3, 1981
Filed: Sep 24, 1979
Inventors
Lee R. Brown
Jose L. Herrera
John D. Plumadore
Assignees (at issue)
James River Graphics Limited
S.I.E., 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.