Granted Patent
Utility
US 5,188,628 · App. 07/609,676
Closure device for enteral fluid containers
Inventors:
Robert G. Rani, Douglas Edward Hahn
Patented Case
View Patent ↗
Granted: Feb 23, 1993
Filed: Nov 6, 1990
Inventors
Robert G. Rani
Douglas Edward Hahn
Assignee (at issue)
Sandoz AG
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.