Granted Patent
Utility
US 5,339,537 · App. 07/973,469
Continuous drier for flat piece material
Inventor:
Kaspar Kuster
Patented Case
View Patent ↗
Granted: Aug 23, 1994
Filed: Nov 9, 1992
Inventor
Kaspar Kuster
Assignee (at issue)
Ciba-Geigy
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.