Granted Patent
Utility
US 4,462,702 · App. 06/386,199
Dot matrix line printer
Inventors:
William O. Fritz, John C. Chamberlain, Gary C. Chandler
Patented Case
View Patent ↗
Granted: Jul 31, 1984
Filed: Jun 7, 1982
Inventors
William O. Fritz
John C. Chamberlain
Gary C. Chandler
Assignee (at issue)
Trilog, 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.