Granted Patent
Utility
US 4,149,977 · App. 05/868,302
Treatment of fabrics in machine dryers
Inventors:
Stephen A. Morganson, Richard C. Christenson
Patented Case
View Patent ↗
Granted: Apr 17, 1979
Filed: Jan 10, 1978
Inventors
Stephen A. Morganson
Richard C. Christenson
Assignee (at issue)
Economics Laboratory, 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.