Granted Patent
Utility
US 6,604,436 · App. 09/521,731
Ultra-accelerated natural sunlight exposure testing facilities
Inventors:
Allan A. Lewandowski, Gary J. Jorgensen
Patented Case
View Patent ↗
Granted: Aug 12, 2003
Filed: Mar 9, 2000
Inventors
Allan A. Lewandowski
Gary J. Jorgensen
Assignee (at issue)
Midwest Research Institute, 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.