US PATENT SUBCLASS 220 / 790
.~.~.~ Closure flange interlocks closure support outer wall

Current as of: June, 1999
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220 /   HD   RECEPTACLES

200  DF  CLOSURES {45}
780  DF  .~ Removable closure situated by resilient distortion and retained by preformed configuration (e.g., detent) {9}
789  DF  .~.~ Interlock internal to passage mouth (e.g., stopper type closure) {2}
790.~.~.~ Closure flange interlocks closure support outer wall

DEFINITION

Classification: 220/790

Closure flange interlocks closure support outer wall:

(under subclass 789) Subject matter wherein the closure is intended to interlock the closure support outer wall.

(1) Note. This subclass provides for a closure which interlocks on both the internal and external walls of the closure support.