Granted Patent
Utility
US 4,873,876 · App. 07/267,984
Chemical process sampler
Inventors:
Michael Sheridan, Kenneth Jaffe
Patented Case
View Patent ↗
Granted: Oct 17, 1989
Filed: Nov 7, 1988
Inventors
Michael Sheridan
Kenneth Jaffe
Assignee (at issue)
Ethylene, LLC
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.