Granted Patent
Utility
US 4,758,637 · App. 06/933,173
Silicone-modified polyester resin and silicone-sheathed polyester fibers made therefrom
Inventors:
James H. Merrifield, George H. Greene
Patented Case
View Patent ↗
Granted: Jul 19, 1988
Filed: Nov 21, 1986
Inventors
James H. Merrifield
George H. Greene
Assignee (at issue)
Union Carbide Corporation
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.