Granted Patent
Utility
US 5,264,864 · App. 07/733,998
Chart recorder
Inventors:
William Hollman, Fremont W. Burrows, John T. Rotunda
Patented Case
View Patent ↗
Granted: Nov 23, 1993
Filed: Jul 22, 1991
Inventors
William Hollman
Fremont W. Burrows
John T. Rotunda
Assignee (at issue)
QuinTron Instrument Company, 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.