Granted Patent
Utility
US 5,908,668 · App. 08/991,523
Curtain coating apparatus having a planar deflector surface and method for using the same
Inventors:
Hans-Georg Bulow, Diana Niesser
Patented Case
View Patent ↗
Granted: Jun 1, 1999
Filed: Dec 16, 1997
Inventors
Hans-Georg Bulow
Diana Niesser
Assignee (at issue)
Ciba Specialty Chemicals 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.