Granted Patent
Utility
US 5,621,339 · App. 08/121,244
Method and apparatus for removing trapped oxide charge from a differential input stage
Inventors:
Donald A. Kerth, Eric J. Swanson
Patented Case
View Patent ↗
Granted: Apr 15, 1997
Filed: Sep 14, 1993
Inventors
Donald A. Kerth
Eric J. Swanson
Assignee (at issue)
Crystal Semiconductor Corp.
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.