Granted Patent
Utility
US 5,154,087 · App. 07/471,555
Sampler apparatus
Inventors:
Hugo Wenshau, Grant G. Rice
Patented Case
View Patent ↗
Granted: Oct 13, 1992
Filed: Jan 29, 1990
Inventors
Hugo Wenshau
Grant G. Rice
Assignee (at issue)
InterSystems Corporation
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.