Granted Patent
Utility
US 6,074,520 · App. 09/056,537
Heated holddown mat for corrugator double backer
Inventors:
Carl R. Marschke, Matthew Chuzles, Kenneth D. Danielson
Patented Case
View Patent ↗
Granted: Jun 13, 2000
Filed: Apr 8, 1998
Inventors
Carl R. Marschke
Matthew Chuzles
Kenneth D. Danielson
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.