Granted Patent
Utility
US 4,898,169 · App. 07/213,597
Medical instrument for therapy of hemorrhoidal lesions
Inventors:
Daniel A. Norman, Ronald Newton, Glenn V. Nicholas, Steven Bellofatto, Stephen K. Onody
Patented Case
View Patent ↗
Granted: Feb 6, 1990
Filed: Jun 30, 1988
Inventors
Daniel A. Norman
Ronald Newton
Glenn V. Nicholas
Steven Bellofatto
Stephen K. Onody
Assignee (at issue)
Boston Scientific Limited
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.