US PATENT SUBCLASS 436 / 532
.~.~.~ Antigen or antibody attached to a carrier via bridging agent

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

Internet Version by PATENTEC © 1999      Terms of Use


436 /   HD   CHEMISTRY: ANALYTICAL AND IMMUNOLOGICAL TESTING

518  DF  INVOLVING AN INSOLUBLE CARRIER FOR IMMOBILIZING IMMUNOCHEMICALS {4}
528  DF  .~ Carrier is organic {3}
531  DF  .~.~ Carrier is synthetic resin {2}
532.~.~.~ Antigen or antibody attached to a carrier via bridging agent {1}
533  DF  .~.~.~.~> Carrier is water suspendible particles (e.g., latex, etc.)

DEFINITION

Classification: 436/532

Antigen or antibody is attached to a carrier via bridging agent:

(under subclass 531) Subject matter wherein the Ag or Ab is bonded to the polymeric carrier through an intermediate compound which attaches to both the Ag or Ab and the carrier.

(1) Note. The intermediate compound is not another Ag or Ab. Such interactions are found below in subclass 540.

(2) Note. The formation of a carrier bound Ag or Ab may be in as stagewise manner with a reaction between the carrier and bridging agent being completed before the Ag or Ab is added or in a process in which the carrier, bridging agent, and Ag or Ab are present simultaneously, in which case some care should be exercised in distinguishing the subject matter of this subclass from mere entrapment. In general, if three separate entities, i.e., Ag or Ab and two different chemical species are present simultaneously bonding through a bridging agent should be presumed.

(3) Note. A product or process classifiable in this subclass combines a polymeric carrier with a bridging agent to provide functional groups for Ag or Ab attachment. It should be noted that similar functional groups can be provided by prior formation of a polymeric carrier by copolymerization of monomers one or more of which contain the desired functional group for Ag or Ab attachment and that as such would be provided for in 531.