Granted Patent
Utility
US 4,250,035 · App. 05/960,606
Radial compression of packed beds
Inventors:
Patrick McDonald, Carl W. Rausch
Patented Case
View Patent ↗
Granted: Feb 10, 1981
Filed: Nov 13, 1978
Inventors
Patrick McDonald
Carl W. Rausch
Assignee (at issue)
WATERS 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.