Granted Patent
Utility
US 5,949,288 · App. 08/899,536
Circuit arrangement with an operational amplifier
Inventor:
Petrus Hendrikus Seesink
Patented Case
View Patent ↗
Granted: Sep 7, 1999
Filed: Jul 24, 1997
Inventor
Petrus Hendrikus Seesink
Assignees (at issue)
Endress+Hauser Inc.
ENVEC Mess- und Regeltechnik GmbH + Co.
VEGA GRIESHABER KG
Kavilco 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.