Granted Patent
Utility
US 5,074,966 · App. 07/602,500
Gap former in a paper machine
Inventor:
Mauri Koivuranta
Patented Case
View Patent ↗
Granted: Dec 24, 1991
Filed: Oct 24, 1990
Inventor
Mauri Koivuranta
Assignee (at issue)
Valmet Paper Machinery Inc.
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.