Granted Patent
Utility
US 4,526,756 · App. 06/687,040
Device for interconnecting specimen collecting tubes
Inventor:
Johnson N. S. Wong
Patented Case
View Patent ↗
Granted: Jul 2, 1985
Filed: Dec 28, 1984
Inventor
Johnson N. S. Wong
Assignee (at issue)
Evergreen Industries, 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.