Granted Patent
Utility
US 4,245,994 · App. 05/820,120
Water soluble polymeric textile treating agent
Inventor:
Stanley A. Lipowski
Patented Case
View Patent ↗
Granted: Jan 20, 1981
Filed: Jul 29, 1977
Inventor
Stanley A. Lipowski
Assignee (at issue)
Diamond Shamrock 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.