Granted Patent
Utility
US 5,006,227 · App. 07/371,986
Volumetric flow controller for aerosol classifier
Inventors:
Steven M. Behm, Virgil A. Marple, Robert M. Burton
Patented Case
View Patent ↗
Granted: Apr 9, 1991
Filed: Jun 26, 1989
Inventors
Steven M. Behm
Virgil A. Marple
Robert M. Burton
Assignee (at issue)
MSP 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.