US PATENT SUBCLASS 128 / 832
.~ With contraceptive, spermacidal, or antifertility agent

Current as of: June, 1999
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128 /   HD   SURGERY

830  DF  FEMALE REPRODUCTORY TRACT SHIELDS, SUPPORTS, OR BIRTH CONTROL DEVICES (E.G., PESSARIES, CONTRACEPTIVE DEVICES) {3}
832.~ With contraceptive, spermacidal, or antifertility agent {1}
833  DF  .~.~> Intrauterine

DEFINITION

Classification: 128/832

With contraceptive, spermicidal or antifertility agent:

(under subclass 830) Subject matter wherein the supporting, occluding or guarding means contain an active agent thereon which functions to change the environmental conditions within the female reproductory tract so as to inhibit or prevent conception.

(1) Note. These agents may act to kill immobilize, block or otherwise prohibit sperms from fertilizing or reaching the egg.