Granted Patent
Utility
US 4,537,816 · App. 06/659,277
Papermakers superimposed felt with voids formed by removing yarns
Inventors:
Ian Booth, Francis J. Cunnane
Patented Case
View Patent ↗
Granted: Aug 27, 1985
Filed: Oct 10, 1984
Inventors
Ian Booth
Francis J. Cunnane
Assignee (at issue)
Ascoe Felts, 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.