Granted Patent
Utility
US 4,737,148 · App. 06/863,117
Filtered T coupling
Inventor:
Larry W. Blake
Patented Case
View Patent ↗
Granted: Apr 12, 1988
Filed: May 14, 1986
Inventor
Larry W. Blake
Assignee (at issue)
Allergan Surgical
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.