US PATENT SUBCLASS 424 / 497
.~.~.~ Containing solid synthetic polymers

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

Internet Version by PATENTEC © 1999      Terms of Use


424 /   HD   DRUG, BIO-AFFECTING AND BODY TREATING COMPOSITIONS

400  DF  PREPARATIONS CHARACTERIZED BY SPECIAL PHYSICAL FORM {12}
489  DF  .~ Particulate form (e.g., powders, granules, beads, microcapsules, and pellets) {5}
490  DF  .~.~ Coated (e.g., microcapsules) {5}
497.~.~.~ Containing solid synthetic polymers

DEFINITION

Classification: 424/497

Containing solid synthetic polymers:

(under subclass 490) Subject matter in which the particles are coated with a solid synthetic resin.

SEE OR SEARCH THIS CLASS, SUBCLASS:

414+, for a synthetic resin foil coated or impregnated with a biocide.

419, for a biocidal particle coated with a synthetic resin.

443, for a synthetic resin web sheet or filament base, bandage or dressing with an incorporated medicament.

462, for a sustained differential release capsule containing discrete particles coated with a synthetic resin.

482, for a tablet coated with a solid synthetic resin.

501, for a synthetic resin impregnated particle.