US PATENT SUBCLASS 264 / 177.15
.~.~.~.~.~ Capillary passages (e.g., pen nibs, writing tips, etc.)

Current as of: June, 1999
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264 /   HD   PLASTIC AND NONMETALLIC ARTICLE SHAPING OR TREATING: PROCESSES

165  DF  FORMING CONTINUOUS OR INDEFINITE LENGTH WORK {8}
176.1  DF  .~ Shaping by extrusion {11}
177.1  DF  .~.~ To produce particular cross section (e.g., noncircular, etc.) {6}
177.13  DF  .~.~.~ Filament (e.g., T-configured, dog-bone, trilobal, etc.) {1}
177.14  DF  .~.~.~.~ Hollow or tubular work produced {1}
177.15.~.~.~.~.~ Capillary passages (e.g., pen nibs, writing tips, etc.)

DEFINITION

Classification: 264/177.15

Capillary passages (e.g., pen nibs, writing tip, etc.):

(under subclass 177.14) Processes wherein the product contains capillary passages, e.g., pen nibs, writing tips, etc.