Granted Patent
Utility
US 4,925,528 · App. 07/334,604
Manufacture of wetlaid nonwoven webs
Inventors:
Stephen H. Tse, David H. Hollenberg, Richard L. Martin, James H. Manning
Patented Case
View Patent ↗
Granted: May 15, 1990
Filed: Apr 6, 1989
Inventors
Stephen H. Tse
David H. Hollenberg
Richard L. Martin
James H. Manning
Assignee (at issue)
JAMES RIVER CORPORATION OF VIRGINIA
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.