Granted Patent
Utility
US 6,821,419 · App. 10/056,186
Diffusion cell with quick release clamp
Inventors:
Royal A. Hanson, Bruce E. Renslow, Steven W. Shaw, Jerome S. Elkins
Patented Case
View Patent ↗
Granted: Nov 23, 2004
Filed: Jan 28, 2002
Inventors
Royal A. Hanson
Bruce E. Renslow
Steven W. Shaw
Jerome S. Elkins
Assignee (at issue)
Hanson Research 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.