Granted Patent
Utility
US 6,729,795 · App. 10/259,650
Modular drain and drain system
Inventors:
Donald E. Dahowski, James G. Wilson, Christopher B. Presler
Patented Case
View Patent ↗
Granted: May 4, 2004
Filed: Sep 30, 2002
Inventors
Donald E. Dahowski
James G. Wilson
Christopher B. Presler
Assignee (at issue)
Quaker Plastic 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.