Granted Patent
Utility
US 5,698,537 · App. 08/666,631
Method of lowering the viscosity of mucus
Inventor:
Thaddeus P. Pruss
Patented Case
View Patent ↗
Granted: Dec 16, 1997
Filed: Jun 18, 1996
Inventor
Thaddeus P. Pruss
Assignee (at issue)
Clarion Pharmaceuticals 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.