Granted Patent
Utility
US 5,366,471 · App. 08/143,446
Esophageal dilation bougie
Inventors:
Richard G. Jones, Jeffrey A. Miner
Patented Case
View Patent ↗
Granted: Nov 22, 1994
Filed: Oct 26, 1993
Inventors
Richard G. Jones
Jeffrey A. Miner
Assignee (at issue)
Pilling Co.
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.