Granted Patent
Utility
US 6,039,714 · App. 09/076,443
Collapsible retention bolster for gastrostomy and other ostomy tubes
Inventors:
Raymond Cracauer, Lester D. Michels
Patented Case
View Patent ↗
Granted: Mar 21, 2000
Filed: May 12, 1998
Inventors
Raymond Cracauer
Lester D. Michels
Assignee (at issue)
Novartis Nutrition 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.