Granted Patent
Utility
US 6,027,499 · App. 09/050,150
Method and apparatus for cryogenic spray ablation of gastrointestinal mucosa
Inventors:
Mark H. Johnston, Jennifer Cartledge
Patented Case
View Patent ↗
Granted: Feb 22, 2000
Filed: Mar 30, 1998
Inventors
Mark H. Johnston
Jennifer Cartledge
Assignee (at issue)
Fiber-Tech Medical, Inc. (Assignee of Jennifer B. Cartledge)
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.