Granted Patent
Utility
US 5,652,142 · App. 08/535,368
Cell culture insert
Inventors:
Susan L. Barker, I-Hsi Chu, Oresta N. Fedun, Tadeusz A. Tyndorf
Patented Case
View Patent ↗
Granted: Jul 29, 1997
Filed: Sep 28, 1995
Inventors
Susan L. Barker
I-Hsi Chu
Oresta N. Fedun
Tadeusz A. Tyndorf
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.