Granted Patent
Utility
US 6,539,643 · App. 09/514,785
Surface groove system for building sheets
Inventor:
James Gleeson
Patented Case
View Patent ↗
Granted: Apr 1, 2003
Filed: Feb 28, 2000
Inventor
James Gleeson
Assignee (at issue)
James Hardie Research Pty Limited
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.