US PATENT SUBCLASS 427 / 471
.~.~ Applying coatings to opposite sides of a substrate (excluding processes where all coating is by immersion)

Current as of: June, 1999
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427 /   HD   COATING PROCESSES

457  DF  DIRECT APPLICATION OF ELECTRICAL, MAGNETIC, WAVE, OR PARTICULATE ENERGY {15}
458  DF  .~ Electrostatic charge, field, or force utilized {7}
471.~.~ Applying coatings to opposite sides of a substrate (excluding processes where all coating is by immersion)

DEFINITION

Classification: 427/471

Applying coatings to opposite sides of a substrate (excluding processes where all coating is by immersion):

(under subclass 458) Processes wherein the coating material is applied to opposing surfaces of a base or substrate.

(1) Note. The opposite sides may be coated with the same or different coating materials.

(2) Note. This subclass does not provide for merely immersing a substrate to coat both sides, but does provide for such an operation combined with additionally coating at least one side of the substrate by another method, such as spraying, etc.

SEE OR SEARCH THIS CLASS, SUBCLASS:

206, for coating both sides of a substrate (web or work-piece) with flock or fiber without the use of electrical or wave energy.

SEE OR SEARCH CLASS

399, Electrophotography, 57, for liquid control developing, subclasses 58+ for concentration control of developing material, subclasses 168+ for charging, subclasses 246+ for sprayed liquid developing, subclass 248 for immersion, and subclasses 265+ for application of dry developing.