Pipes and tubular conduits – Joined sections
Reexamination Certificate
2007-02-20
2007-02-20
Hook, James (Department: 3754)
Pipes and tubular conduits
Joined sections
C138SDIG011, C285S132100, C428S036920
Reexamination Certificate
active
10631382
ABSTRACT:
A drain, waste and vent (“DWV”) fitting is made from chlorinated polyvinyl chloride.
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Charlotte Pipe and Foundry Company, ChemDrain, Nov. 14, 2005, Charlotte Pipe and Foundary Company, www.charlottepipe.com, home page for ChemDrain.
Charlotte Pipe and Foundry Company, ChemDrain Technical and Installation manual, updated Sep. 2005, Charlotte Pipe and Foundry Company, pp. 1, 28-29.
Anderson Denton L.
Hook James
Sheldon Mak Rose & Anderson PC
Spears Manufacturing Co.
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