Granted Patent
Utility
US 4,345,716 · App. 06/170,954
Sachet
Inventors:
John C. Armstrong, Joseph H. O'Neil
Patented Case
View Patent ↗
Granted: Aug 24, 1982
Filed: Jul 21, 1980
Inventors
John C. Armstrong
Joseph H. O'Neil
Assignee (at issue)
PHARMASOL GMBH
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.