Granted Patent
Utility
US 4,539,073 · App. 06/426,104
Method and apparatus for measuring the size of a discharge slot in a headbox
Inventor:
Anders Andersson
Patented Case
View Patent ↗
Granted: Sep 3, 1985
Filed: Sep 28, 1982
Inventor
Anders Andersson
Assignee (at issue)
KMW 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.