US PATENT SUBCLASS 435 / 7.21
.~.~.~ Animal cell


Current as of: June, 1999
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435 /   HD   CHEMISTRY: MOLECULAR BIOLOGY AND MICROBIOLOGY

4  DF  MEASURING OR TESTING PROCESS INVOLVING ENZYMES OR MICRO-ORGANISMS; COMPOSITION OR TEST STRIP THEREFORE; PROCESSES OF FORMING SUCH COMPOSITION OR TEST STRIP {15}
7.1  DF  .~ Involving antigen-antibody binding, specific binding protein assay or specific ligand-receptor binding assay {9}
7.2  DF  .~.~ Involving a micro-organism or cell membrane bound antigen or cell membrane bound receptor or cell membrane bound antibody or microbial lysate {4}
7.21.~.~.~ Animal cell {4}
7.22  DF  .~.~.~.~> Parasite or protozoa
7.23  DF  .~.~.~.~> Tumor cell or cancer cell
7.24  DF  .~.~.~.~> Leukocyte (e.g., lymphocyte, granulocyte, monocyte, etc.)
7.25  DF  .~.~.~.~> Erythrocyte


DEFINITION

Classification: 435/7.21

Animal cell:

(under subclass 7.2) Subject matter involving animal cells.

(1) Note. Though "whole blood" contains animal cells, the mere presence of a "whole blood sample" in an assay or test is not sufficient for placement in this and the indented subclasses. Since "whole blood" is a complex mixture of cells and liquid, classifying based on its presence might be inconsistent. Furthermore, the "whole blood" aspect is rarely of main importance, therefore, patents using whole blood samples are more appropriately placed based on the analyte of interest or on a reagent which is more specific, i.e., cancer cell, lymphocyte, red blood cell, enzyme label, etc., to one of the subclasses below.

(2) Note. "Animal cell" in this and the indented subclasses is also intended to include tissue.