Granted Patent
Utility
US 5,221,828 · App. 07/914,276
Heated wiper blade using conductive elastomer
Inventors:
Rafil A. Basheer, Ismat A. Abu-Isa, Darrel S. Nelson
Patented Case
View Patent ↗
Granted: Jun 22, 1993
Filed: Jul 16, 1992
Inventors
Rafil A. Basheer
Ismat A. Abu-Isa
Darrel S. Nelson
Assignee (at issue)
General Motors 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.