US PATENT SUBCLASS 205 / 52
ELECTROLYTIC MARKING OR COMPOSITION THEREFOR

Current as of: June, 1999
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205 /   HD   ELECTROLYSIS: PROCESSES, COMPOSITIONS USED THEREIN, AND METHODS OF PREPARING THE COMPOSITIONS

52ELECTROLYTIC MARKING OR COMPOSITION THEREFOR {2}
53  DF  .~> Utilizing inorganic color-forming material other than carbon
54  DF  .~> Utilizing organic color-forming material {2}

DEFINITION

Classification: 205/52

Electrolytic marking or composition therefor:

(under the class definition) Subject matter for the development of successive marks, letters, designs and the like, upon a surface or within the body of a carrier, wherein electrical impulses from an electrode are employed to create by electrolysis, at selected areas, different colors, shades, or shapes resulting in the desired symbol (e.g., electroprinting, etc.).

(1) Note. This subclass also includes compositions, not

elsewhere provided for, particularly adapted to carry out the processes herein included.

(2) Note. It is the general rule of classification to classify a process of preparing a composition along with the composition. In these circumstances where only a process of preparing a composition is claimed and there is no claim to a composition, the claims would be classified identically as if there were a composition claimed.

(3) Note. The symbols must consist of a series successively formed, otherwise the process will be found in this class, subclass 118 and indented subclasses.

SEE OR SEARCH CLASS

178, Telegraphy,

62, for chemical or electrical methods of recording messages transmitted by current impulses other than by electrolysis and apparatus for carrying out such processes including those involving electrolysis. 346, Recorders, appropriate subclasses for apparatus involving similar processes and peculiarly adapted to record the movements of instruments, machines, and the like.

358, Facsimile,

296+, for processes and apparatus specialized for formation of optical facsimiles wherein the image is developed by electrolysis or other electrical modes or by chemical changes.

386, Television Signal Processing for Dynamic Recording or Reproducing,

127, for television recording having thermoplastic record.