Granted Patent
Utility
US 5,416,723 · App. 08/025,786
Loop powered process control transmitter
Inventor:
Ian D. Zyl
Patented Case
View Patent ↗
Granted: May 16, 1995
Filed: Mar 3, 1993
Inventor
Ian D. Zyl
Assignee (at issue)
Milltronics Ltd.
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.