Granted Patent
Utility
US 4,477,313 · App. 06/421,043
Method and apparatus for producing a multilayer paper web
Inventor:
Anders Andersson
Patented Case
View Patent ↗
Granted: Oct 16, 1984
Filed: Sep 22, 1982
Inventor
Anders Andersson
Assignee (at issue)
Aktiebolaget Karlstads Mekaniska Werkstad
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.