Granted Patent
Utility
US 5,106,457 · App. 07/569,975
Hydroentangled nonwoven fabric containing synthetic fibers having a ribbon-shaped crenulated cross-section and method of producing the same
Inventor:
James H. Manning
Patented Case
View Patent ↗
Granted: Apr 21, 1992
Filed: Aug 20, 1990
Inventor
James H. Manning
Assignee (at issue)
James River 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.