US PATENT SUBCLASS 424 / 9.81
.~.~ Visible immune reaction (e.g., allergy testing, etc.)


Current as of: June, 1999
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424 /   HD   DRUG, BIO-AFFECTING AND BODY TREATING COMPOSITIONS

9.1  DF  IN VIVO DIAGNOSIS OR IN VIVO TESTING {7}
9.8  DF  .~ Diagnostic or test agent produces visible change on skin {1}
9.81.~.~ Visible immune reaction (e.g., allergy testing, etc.)


DEFINITION

Classification: 424/9.81

Visible immune reaction (e.g., allergy test, etc.):

(under subclass 9.8) Subject matter wherein the agent, an antigenic substance or allergen, is applied to or injected into a subject in order to determine whether the subject is allergic or hypersensitive to the agent as indicated by a visible change on the skin (i.e., redness, swelling, etc.).

(1) Note. The antigenic substance or allergen includes pollen, house dust, micro-organisms, chemicals, etc.

(2) Note. Skin tests such as those to indicate an individual's sensitivity to penicillin or other medicaments, tuberculosis tests, etc. are included in this subclass.