US PATENT SUBCLASS 117 / 47
.~.~ Flat, free-standing (i.e., substrate-free) product (e.g., ribbon, film, sheet)

Current as of: June, 1999
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117 /   HD   SINGLE-CRYSTAL, ORIENTED-CRYSTAL, AND EPITAXY GROWTH PROCESSES; NON-COATING APPARATUS THEREFOR

11  DF  PROCESSES OF GROWTH FROM LIQUID OR SUPERCRITICAL STATE {7}
37  DF  .~ Having moving solid-liquid-solid region {8}
47.~.~ Flat, free-standing (i.e., substrate-free) product (e.g., ribbon, film, sheet)

DEFINITION

Classification: 117/47

Flat, free-standing (i.e., substrate-free) product (e.g., ribbon, film, sheet):

(under subclass 37) Subject matter in which the single-crystal* product is free-standing (i.e., not adhering to a substrate) and is flat (i.e. has two substantially planar and parallel faces).

(1) Note. If the disclosed intent is to produce an unlayered product but the claims do not recite separation of the crystal product from its substrate, then the reference should be placed in both this subclass and in subclass 43.

(2) Note. Cross-referencing to art collection 922 is precluded as unnecessarily duplicative.

SEE OR SEARCH THIS CLASS, SUBCLASS:

43, for processes in which the flat product (e.g., ribbon, film, or sheet) is part of a layered product.