Granted Patent
Utility
US 4,164,568 · App. 05/776,536
Oral scour formulations with citrate
Inventor:
Robert J. Bywater
Patented Case
View Patent ↗
Granted: Aug 14, 1979
Filed: Mar 11, 1977
Inventor
Robert J. Bywater
Assignee (at issue)
Beechamgroup Limited
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.