Granted Patent
Utility
US 5,242,466 · App. 07/849,605
Reactive dyebath additive:potassium silicate and potassium hydroxide
Inventors:
Theodore D. Aseervatham, Marc Ballman, James T. Hayes
Patented Case
View Patent ↗
Granted: Sep 7, 1993
Filed: Mar 12, 1992
Inventors
Theodore D. Aseervatham
Marc Ballman
James T. Hayes
Assignee (at issue)
Unilever Patent Holdings B.V.
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.