Granted Patent
Utility
US 5,380,290 · App. 07/870,140
Body access device
Inventors:
Joshua Makower, Earl Howard Slee, Naomi C. Chesler, William J. Gorman, Frank E. Barber
Patented Case
View Patent ↗
Granted: Jan 10, 1995
Filed: Apr 16, 1992
Inventors
Joshua Makower
Earl Howard Slee
Naomi C. Chesler
William J. Gorman
Frank E. Barber
Assignee (at issue)
Pfizer Hospital Products Group, Inc.
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.