Granted Patent
Utility
US 4,780,183 · App. 07/116,402
Method of using a dual compartment vacufoil unit to eliminate secondary headbox chatter
Inventor:
Roy Jones
Patented Case
View Patent ↗
Granted: Oct 25, 1988
Filed: Nov 3, 1987
Inventor
Roy Jones
Assignee (at issue)
Huyck 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.