Granted Patent
Utility
US 6,635,188 · App. 10/124,979
Windshield washer and deicer
Inventors:
Kris A. Berglund, Dilum Dunuwila, Hasan Alizadeh
Patented Case
View Patent ↗
Granted: Oct 21, 2003
Filed: Apr 18, 2002
Inventors
Kris A. Berglund
Dilum Dunuwila
Hasan Alizadeh
Assignees (at issue)
Board of Trustees of Michigan State University
Applied CarboChemicals
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.