Granted Patent
Utility
US 4,997,628 · App. 07/397,823
Web growth configuration for higher productivity and 100% feed rate capability at wide widths
Inventor:
Paul A. Piotrowski
Patented Case
View Patent ↗
Granted: Mar 5, 1991
Filed: Aug 24, 1989
Inventor
Paul A. Piotrowski
Assignee (at issue)
Westinghouse Electric Company LLC
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.