Granted Patent
Utility
US 6,143,255 · App. 09/249,515
Method for controlling arcing while charging a web
Inventor:
Donna S. Cowell Senft
Patented Case
View Patent ↗
Granted: Nov 7, 2000
Filed: Feb 12, 1999
Inventor
Donna S. Cowell Senft
Assignee (at issue)
Permacharge 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.