US PATENT SUBCLASS 405 / 30
.~.~ Openwork or concave face

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


405 /   HD   HYDRAULIC AND EARTH ENGINEERING

15  DF  BANK, SHORE, OR BED PROTECTION {2}
21  DF  .~ Wave or flow dissipation {8}
30.~.~ Openwork or concave face {5}
31  DF  .~.~.~> Associated with solid wall
32  DF  .~.~.~> With fabric
33  DF  .~.~.~> Interfitted or interleaved members
34  DF  .~.~.~> Jetty
35  DF  .~.~.~> Spaced members

DEFINITION

Classification: 405/30

Openwork or concave face:

(under subclass 21) Method or apparatus relating to a structure which includes (a) a portion which dissipates wave or flow by allowing the water to flow therethrough, or (b) a groovelike depression on its wave or flow dissipation surface.