Granted Patent
Utility
US 4,553,043 · App. 06/479,226
High speed drive circuit
Inventor:
Lanny L. Parker
Patented Case
View Patent ↗
Granted: Nov 12, 1985
Filed: Mar 28, 1983
Inventor
Lanny L. Parker
Assignee (at issue)
Codex Corporation
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.