Static structures (e.g. – buildings) – Elongated rigid structure – Made up of longitudinally arranged strip-like sections
Reexamination Certificate
2004-11-08
2009-11-24
Katcheves, Basil (Department: 3635)
Static structures (e.g., buildings)
Elongated rigid structure
Made up of longitudinally arranged strip-like sections
C052S223300, C052S223100, C405S259100
Reexamination Certificate
active
07621103
ABSTRACT:
A duct system for profiled post-tendon construction has a first duct, a second duct and a third duct joined together in end-to-end relationship. The first and third ducts are of one type of polymeric material. The second duct is of a different type of polymeric material. The second duct has a parabolic curvature while the first and third ducts are generally straight. The second duct has a cross-sectional configuration that is identical to the cross-sectional configuration of the first and third ducts.
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Egbert Law Offices PLLC
Katcheves Basil
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