Granted Patent
Utility
US 5,676,933 · App. 08/502,212
Stable sodium percarbonate formulation
Inventor:
John P. Hauschild
Patented Case
View Patent ↗
Granted: Oct 14, 1997
Filed: Jul 13, 1995
Inventor
John P. Hauschild
Assignee (at issue)
Church & Dwight 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.