US PATENT SUBCLASS 427 / 64
.~ Fluorescent or phosphorescent base coating (e.g., cathode-ray tube, luminescent screen, etc.)

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

Internet Version by PATENTEC © 1999      Terms of Use


427 /   HD   COATING PROCESSES

58  DF  ELECTRICAL PRODUCT PRODUCED {21}
64.~ Fluorescent or phosphorescent base coating (e.g., cathode-ray tube, luminescent screen, etc.) {8}
65  DF  .~.~> X-radiation properties
66  DF  .~.~> Electroluminescent lamp
67  DF  .~.~> Fluorescent lamp
68  DF  .~.~> Multicolor or mosaic (e.g., color T.V. tube, etc.)
69  DF  .~.~> Vapor deposition {1}
71  DF  .~.~> Particles applied
72  DF  .~.~> Rotating the base
73  DF  .~.~> Settling out of liquid

DEFINITION

Classification: 427/64

(under subclass 58) Processes wherein the product produced is capable of emission of light when excited by electrons,

ultraviolet radiation, or X-rays or after such excitation has been removed.

(1) Note. This subclass provides for coating cathode-ray tubes, luminescent screens, etc., even though the patent does not state that the article has fluorescent or phosphorescent characteristics since such articles are assumed to have these characteristics. Further, it is not necessary that the coating being applied is the fluorescent or phosphorescent coating since such articles may have additional coatings.

SEE OR SEARCH THIS CLASS, SUBCLASS:

157+, for processes of coating producing a fluorescent or phosphorescent product which is not an electrical product.

SEE OR SEARCH CLASS

250, Radiant Energy, 458.1+, for devices or bases having fluorescent or phosphorescent coatings which include structure other than a mere base with a coating thereon. Devices, such as screens, which are merely bases having a fluorescent or phosphorescent coating are classified in this class (428).

252, Compositions,

301.16+, for compositions exhibiting fluorescent or phosphorescent effects.

313, Electric Lamp and Discharge Devices,

364+, for cathode-ray tubes having a fluorescent or phosphorescent screen or target, and subclasses 483+ for other electric lamps and electronic tubes but which are provided with a fluorescent or phosphorescent material.