Static structures (e.g. – buildings) – With entrance for persons or objects in horizontal or... – Masonry or concrete
Reexamination Certificate
2003-01-28
2009-08-18
Shriver, J. Allen (Department: 3632)
Static structures (e.g., buildings)
With entrance for persons or objects in horizontal or...
Masonry or concrete
C052S020000, C404S025000
Reexamination Certificate
active
07574831
ABSTRACT:
An integrally formed riser pan member for use as a modular component within an access passageway for an on-site waste disposal system, such as a septic tank, to receivably retain a secondary cover member within, the riser pan member including a cylindrical body having an upper portion having a vertical wall member adapted to receive another modular passageway component thereon, and a lower portion which includes an integral pan portion to seatably receive a secondary cover member. The riser pan member further includes an annular ring between the upper and lower portions. The riser pan member can be employed as a lowermost, a highermost, or as an intermediate component in, for example, an access passageway formed of multiple stackable riser members. In addition, the riser pan member may be formed integrally with a stackable riser member.
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Polylok, Inc. brochure entitled “Polylok's new Super Risers” (understood to be published in Apr. 2002).
Digital photos of American Manufacturing Company, Manassas, Virginia, “Distribution Box”, “Box Riser” (extension and flange). “Box Riser SL” (extension flange assembled), understood to be on sale at least as early as Jan. 1, 2001.
Marsh Steven
Marshall & Gerstein & Borun LLP
Shriver J. Allen
Tuf-Tite, Inc.
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