Granted Patent
Utility
US 5,857,605 · App. 08/893,259
Vacuum assisted web drive for corrugator double backer
Inventors:
Harold D. Welch, Matthew Tourdot, Paul A. Garvoille, Carl R. Marschke
Patented Case
View Patent ↗
Granted: Jan 12, 1999
Filed: Jul 17, 1997
Inventors
Harold D. Welch
Matthew Tourdot
Paul A. Garvoille
Carl R. Marschke
Assignee (at issue)
Marquip, 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.