Granted Patent
Utility
US 4,198,446 · App. 05/877,651
Apparatus for the manufacture of a dual coated manifold sheet with pressure-rupturable materials
Inventor:
William J. Goetz
Patented Case
View Patent ↗
Granted: Apr 15, 1980
Filed: Feb 14, 1978
Inventor
William J. Goetz
Assignee (at issue)
NCR 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.