Granted Patent
Utility
US 5,721,048 · App. 08/220,465
Cardable hydrophobic polyolefin fiber, material and method for preparation thereof
Inventor:
A. Chandler Schmalz
Patented Case
View Patent ↗
Granted: Feb 24, 1998
Filed: Mar 30, 1994
Inventor
A. Chandler Schmalz
Assignee (at issue)
Fiberco, 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.