Granted Patent
Utility
US 5,783,440 · App. 08/719,827
Culture vessel
Inventor:
Timothy A. Stevens
Patented Case
View Patent ↗
Granted: Jul 21, 1998
Filed: Sep 30, 1996
Inventor
Timothy A. Stevens
Assignee (at issue)
BECTON, DICKINSON AND COMPANY
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.