Granted Patent
Utility
US 6,286,257 · App. 09/507,834
Overhead door with dual safety-edge
Inventors:
Daniel Gregoriou, Jeffrey Konetzki
Patented Case
View Patent ↗
Granted: Sep 11, 2001
Filed: Feb 22, 2000
Inventors
Daniel Gregoriou
Jeffrey Konetzki
Assignee (at issue)
Rytec 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.