Granted Patent
Utility
US 6,427,749 · App. 09/577,870
Power-driven shutter assembly
Inventors:
Edward A. Swink, Clayton M. Smith, Carl L. Murphy, Rick Lavelock
Patented Case
View Patent ↗
Granted: Aug 6, 2002
Filed: May 24, 2000
Inventors
Edward A. Swink
Clayton M. Smith
Carl L. Murphy
Rick Lavelock
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.