Granted Patent
Utility
US 6,507,283 · App. 09/314,519
Self-validating output module
Inventor:
James G. Calvin
Patented Case
View Patent ↗
Granted: Jan 14, 2003
Filed: May 19, 1999
Inventor
James G. Calvin
Assignee (at issue)
Fox Boro Company
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.