Granted Patent
Utility
US 4,843,613 · App. 06/826,700
Digitally implemented modulators
Inventor:
Brian Crowle
Patented Case
View Patent ↗
Granted: Jun 27, 1989
Filed: Feb 6, 1986
Inventor
Brian Crowle
Assignee (at issue)
Digital Equipment 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.