Granted Patent
Utility
US 6,824,887 · App. 10/044,895
Multicompartment structure for insulation and other materials
Inventor:
G. William Ragland
Patented Case
View Patent ↗
Granted: Nov 30, 2004
Filed: Jan 9, 2002
Inventor
G. William Ragland
Assignee (at issue)
ATD 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.