Granted Patent
Utility
US 6,576,025 · App. 09/775,251
Fabric blends of aramid fibers and flame resistant cellulosic fibers
Inventor:
Francois Lapierre
Patented Case
View Patent ↗
Granted: Jun 10, 2003
Filed: Feb 1, 2001
Inventor
Francois Lapierre
Assignee (at issue)
Difco Performance Fabrics, Inc.
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.