Granted Patent
Utility
US 4,937,569 · App. 07/212,068
Data communication system
Inventors:
Jeremy R. Trask, Anthony Wiener
Patented Case
View Patent ↗
Granted: Jun 26, 1990
Filed: Jun 28, 1988
Inventors
Jeremy R. Trask
Anthony Wiener
Assignee (at issue)
EMI, LLC
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.