Granted Patent
Utility
US 5,158,575 · App. 07/851,128
Silicone textile finishes
Inventor:
Anna Czech
Patented Case
View Patent ↗
Granted: Oct 27, 1992
Filed: Mar 16, 1992
Inventor
Anna Czech
Assignee (at issue)
Union Carbide Chemicals & Plastics Technology 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.