Granted Patent
Utility
US 4,719,912 · App. 07/057,692
Apparatus for controlling the photocoagulation of biological tissue
Inventor:
Wolfram Weinberg
Patented Case
View Patent ↗
Granted: Jan 19, 1988
Filed: May 26, 1987
Inventor
Wolfram Weinberg
Assignee (at issue)
Promed Technology, 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.