Granted Patent
Utility
US 5,358,288 · App. 07/935,445
Capillary duct system and process and apparatus for producing a capillary duct system
Inventors:
Hajo Lindner, Josef Zwickl
Patented Case
View Patent ↗
Granted: Oct 25, 1994
Filed: Aug 24, 1992
Inventors
Hajo Lindner
Josef Zwickl
Assignee (at issue)
E.G.O. Elektro-Gerate Blanc u. Fischer
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.