Granted Patent
Utility
US 6,422,249 · App. 09/636,517
Cartridge washing system and methods
Inventors:
Ulrich Certa, Hansjörg Tschirky
Patented Case
View Patent ↗
Granted: Jul 23, 2002
Filed: Aug 10, 2000
Inventors
Ulrich Certa
Hansjörg Tschirky
Assignee (at issue)
AFFYMETRIX, INC.
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.