Granted Patent
Utility
US 4,773,552 · App. 07/046,481
Closure for sample bottles
Inventors:
Dietrich Boege, Wolfgang Riegger
Patented Case
View Patent ↗
Granted: Sep 27, 1988
Filed: May 4, 1987
Inventors
Dietrich Boege
Wolfgang Riegger
Assignee (at issue)
Bodenseewerk Perkin-Elmer GmbH
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.