Granted Patent
Utility
US 4,250,822 · App. 06/100,946
Low bulk, pin-type seam for use in paper making equipment fabrics, such as dryer felts
Inventor:
Gisela Fickers
Patented Case
View Patent ↗
Granted: Feb 17, 1981
Filed: Dec 6, 1979
Inventor
Gisela Fickers
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.