Granted Patent
Utility
US 4,883,470 · App. 07/245,578
Safety cap
Inventor:
Hans Haindl
Patented Case
View Patent ↗
Granted: Nov 28, 1989
Filed: Sep 20, 1988
Inventor
Hans Haindl
Assignee (at issue)
B. Braun Melsungen 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.