Granted Patent
Utility
US 5,284,650 · App. 07/972,434
Process for making high solids fabric softeners using low amounts of solvents and eliminating side reactions
Inventor:
David E. Whittlinger
Patented Case
View Patent ↗
Granted: Feb 8, 1994
Filed: Nov 5, 1992
Inventor
David E. Whittlinger
Assignee (at issue)
Sherex Chemical Co., 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.