Granted Patent
Utility
US 5,340,496 · App. 08/029,987
Stabilized sodium percarbonate composition
Inventors:
Kanji Sato, Tomomasa Kondo
Patented Case
View Patent ↗
Granted: Aug 23, 1994
Filed: Mar 12, 1993
Inventors
Kanji Sato
Tomomasa Kondo
Assignee (at issue)
Tokai Denka Kogyo Kabushiki Kaisha
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.