Granted Patent
Utility
US 6,030,422 · App. 09/362,830
Method for modifying the electrochemical surface area of a cell using a perforated film
Inventor:
Michael F. Pyszczek
Patented Case
View Patent ↗
Granted: Feb 29, 2000
Filed: Jul 28, 1999
Inventor
Michael F. Pyszczek
Assignee (at issue)
Wilson Greatbatch, 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.