US PATENT SUBCLASS 436 / 531
.~.~ Carrier is synthetic resin

Current as of: June, 1999
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436 /   HD   CHEMISTRY: ANALYTICAL AND IMMUNOLOGICAL TESTING

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

DEFINITION

Classification: 436/531

Carrier is synthetic resin:

(under subclass 528) Subject matter in which the support material is a linear or cross-linked polymer which is not naturally occurring.

(1) Note. For purposes of this and the indented subclass "latex" is conclusively presumed to be a synthetic resin.

(2) Note. Polystryrene latex particles make up the majority of the latex subclass.