Granted Patent
Utility
US 4,559,900 · App. 06/585,187
Device for coating strip material
Inventors:
David M. Knapke, Kenneth C. Johnson
Patented Case
View Patent ↗
Granted: Dec 24, 1985
Filed: Mar 1, 1984
Inventors
David M. Knapke
Kenneth C. Johnson
Assignee (at issue)
F. J. Littell Machine Company
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.