Granted Patent
Utility
US 5,981,463 · App. 09/093,211
Anhydrous detergent/bleach composition and method of preparing same
Inventors:
Michael Oberlander, Robert P. Langguth
Patented Case
View Patent ↗
Granted: Nov 9, 1999
Filed: Jun 8, 1998
Inventors
Michael Oberlander
Robert P. Langguth
Assignee (at issue)
Noramtech 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.