Granted Patent
Utility
US 5,736,494 · App. 08/781,033
Flowable non-borax containing powder carpet cleaning compositions containing anionic and nonionic surfactants
Inventors:
Andrew Colurciello, Jeanne Marie Weller
Patented Case
View Patent ↗
Granted: Apr 7, 1998
Filed: Jan 7, 1997
Inventors
Andrew Colurciello
Jeanne Marie Weller
Assignee (at issue)
Reckitt & Colman Limited
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.