Granted Patent
Utility
US 5,980,641 · App. 08/876,149
Methods and solutions for cleaning dentures
Inventor:
Henryk Jakubowski
Patented Case
View Patent ↗
Granted: Nov 9, 1999
Filed: Jun 13, 1997
Inventor
Henryk Jakubowski
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.