Granted Patent
Utility
US 4,759,975 · App. 06/927,743
Papermaker's wet press felt having multi-layered base fabric
Inventors:
Paul H. Sutherland, William S. Summer, Jr.
Patented Case
View Patent ↗
Granted: Jul 26, 1988
Filed: Nov 6, 1986
Inventors
Paul H. Sutherland
William S. Summer, Jr.
Assignee (at issue)
Asten, 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.