Granted Patent
Utility
US 5,230,843 · App. 07/718,445
Process of forming microporous fibers and filaments
Inventors:
Robert E. Howard, James Young
Patented Case
View Patent ↗
Granted: Jul 27, 1993
Filed: Jun 20, 1991
Inventors
Robert E. Howard
James Young
Assignee (at issue)
Entek Manufacturing LLC
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.