US PATENT SUBCLASS 220 / 623
.~.~ Contoured end wall (e.g., curved, corrugated, ribbed, variable thickness, etc.)

Current as of: June, 1999
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220 /   HD   RECEPTACLES

600  DF  END WALL STRUCTURE {8}
610  DF  .~ Joint or seam between sidewall and end wall {6}
623.~.~ Contoured end wall (e.g., curved, corrugated, ribbed, variable thickness, etc.) {1}
624  DF  .~.~.~> Pressure responsive contour

DEFINITION

Classification: 220/623

Contoured end wall (e.g., curved, corrugated, ribbed, variable thickness, etc.):

(under subclass 610) Receptacle wherein the end wall has a nonplanar configuration.

SEE OR SEARCH THIS CLASS, SUBCLASS:

608+, for similar structure wherein the sidewall and end wall are of one-piece construction.

669+, for contoured sidewall structure.