Granted Patent
Utility
US 4,973,503 · App. 06/748,888
Mixed fiber tow or tube and method of making
Inventor:
Harry W. Hotchkiss
Patented Case
View Patent ↗
Granted: Nov 27, 1990
Filed: Jun 26, 1985
Inventor
Harry W. Hotchkiss
Assignee (at issue)
Kimberly-Clark 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.