US PATENT SUBCLASS 430 / 270.11
.~.~ Optical recording nonstructural layered product having a radiation sensitive composition layer claimed or solely disclosed as optically reorderable and optically machine readable

Current as of: June, 1999
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430 /   HD   RADIATION IMAGERY CHEMISTRY: PROCESS, COMPOSITION, OR PRODUCT THEREOF

269  DF  IMAGING AFFECTING PHYSICAL PROPERTY OF RADIATION SENSITIVE MATERIAL, OR PRODUCING NONPLANAR OR PRINTING SURFACE - PROCESS, COMPOSITION, OR PRODUCT {17}
270.1  DF  .~ Radiation sensitive composition or product or process of making {5}
270.11.~.~ Optical recording nonstructural layered product having a radiation sensitive composition layer claimed or solely disclosed as optically reorderable and optically machine readable {2}
270.12  DF  .~.~.~> Having read-write layer of 100 per cent inorganic composition {1}
270.14  DF  .~.~.~> Having read-write layer of 100 per cent organic or organometallic composition or mixtures thereof {1}

DEFINITION

Classification: 430/270.11

Optical recording nonstructural layered product having a radiation sensitive composition layer claimed or solely disclosed as optically recordable and optically machine readable:

(under subclass 270.1) Subject matter wherein a non-structural plural layered product having a radiation sensitive composition containing layer is claimed or solely disclosed for use as a carrier of optically recorded and optically machine readable information.

(1) Note. This subclass expressly excludes products designated as resists or printing plates.

SEE OR SEARCH THIS CLASS, SUBCLASS:

945, a cross-reference art collection for materials recorded upon using a laser.

SEE OR SEARCH CLASS

346, Recorders; particularly,

134, [supscrpt]+[end supscrpt] for a single or plural layer web or sheet which is disclosed as a record receiver solely for use with apparatus provided for in (1) and (2) of the definition of that class. (1) Note. A web or sheet which has chart graduations (e.g., graph, etc.) thereon is assigned to Class 346, subclass 135.1, regardless of its disclosure.

365, Static information storage and retrieval; for apparatus or corresponding processes for the static storage and retrieval of information, particularly

106, [supscrpt]+[end supscrpt] for radiation altering of a condition or state of a memory material or element in accordance with the information stored.

369, Dynamic information storage or retrieval; particularly

272.1, [supscrpt]+[end supscrpt], for a record carrier, per se, having specific information storage structure.

(1) Note. The characteristic variation is one which must be retrievable by a transducer. Such variation producing only a directly perceptible indication (e.g., a graph) is classified in Class 346.

428, Stock Material or Miscellaneous Articles, provides for stock-liquid crystal, an article having a latent or developable image formed other than by use of radiation, and nonradiation sensitive stock material disclosed for use in radiation imagery.

(1) Note. A web or sheet disclosed as a record receiver of general utility, or for multiple uses, at least one of which is other than for a recorder apparatus provided for in Class 346, is classified in the appropriate subclass in Class 428, with a cross-reference to Class 346, if appropriate.

(2) Note. A disc with or without grooves which does not include recorded information is classified in Class 428, subclasses 64.1[supscrpt]+[end supscrpt].