Granted Patent
Utility
US 5,786,132 · App. 08/649,754
Pre-dyes, mutable dye compositions, and methods of developing a color
Inventors:
Ronald Sinclair Nohr, John Gavin MacDonald
Patented Case
View Patent ↗
Granted: Jul 28, 1998
Filed: May 29, 1996
Inventors
Ronald Sinclair Nohr
John Gavin MacDonald
Assignee (at issue)
Kimberly-Clark 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.