Granted Patent
Utility
US 4,760,271 · App. 06/843,588
Apparatus and process for measuring formation and roughness of a paper web
Inventor:
Irving R. Brenholdt
Patented Case
View Patent ↗
Granted: Jul 26, 1988
Filed: Mar 25, 1986
Inventor
Irving R. Brenholdt
Assignee (at issue)
Champion International Corporation Limited
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.