Granted Patent
Utility
US 5,619,166 · App. 08/348,589
Active filtering method and apparatus
Inventor:
Eric Gross
Patented Case
View Patent ↗
Granted: Apr 8, 1997
Filed: Dec 2, 1994
Inventor
Eric Gross
Assignee (at issue)
Cypress Semiconductor 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.