Granted Patent
Utility
US 5,047,460 · App. 07/352,519
Stabilized polypropylene fibers pigmented with Red 144
Inventors:
George Kletecka, John T. Lai
Patented Case
View Patent ↗
Granted: Sep 10, 1991
Filed: May 16, 1989
Inventors
George Kletecka
John T. Lai
Assignee (at issue)
B. F. Goodrich Company
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.