Granted Patent
Utility
US 4,627,457 · App. 06/756,757
Method and apparatus for treating a plurality of zones of a processing line
Inventors:
Kenneth J. Bird, Robert J. Cross, Manjit Singh
Patented Case
View Patent ↗
Granted: Dec 9, 1986
Filed: Jul 18, 1985
Inventors
Kenneth J. Bird
Robert J. Cross
Manjit Singh
Assignee (at issue)
DIVERSEY, 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.