Granted Patent
Utility
US 4,540,311 · App. 06/325,914
Geotextile fabric construction
Inventor:
Jack Leach
Patented Case
View Patent ↗
Granted: Sep 10, 1985
Filed: Nov 30, 1981
Inventor
Jack Leach
Assignee (at issue)
Burlington Industries LLC
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.