US PATENT SUBCLASS 428 / 35.2
.~ Nonself-supporting tubular film or bag (e.g., pouch, envelope, packet, etc.)

Current as of: June, 1999
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428 /   HD   STOCK MATERIAL OR MISCELLANEOUS ARTICLES

34.1  DF  HOLLOW OR CONTAINER TYPE ARTICLE (E.G., TUBE, VASE, ETC.) {7}
35.2.~ Nonself-supporting tubular film or bag (e.g., pouch, envelope, packet, etc.) {3}
35.3  DF  .~.~> Elemental metal containing
35.4  DF  .~.~> Contains vapor or gas barrier, polymer derived from vinyl chloride or vinylidene chloride, or polymer containing a vinyl alcohol unit
35.5  DF  .~.~> Single layer (continuous layer)

DEFINITION

Classification: 428/35.2

Nonself-supporting tubular film or bag (e.g., pouch, envelope, packet, etc.):

(under subclass 34.1) Article* which is a tubular film or bag-like container (e.g., pouch, sack, packet, envelope, butterfly pouch, pouch, pocket-like container, etc).

(1) Note. See subclass 34.3, Note (1) for tubular film explanation.

SEE OR SEARCH THIS CLASS, SUBCLASS:

35.7+, for self-supporting or rigid tubular object. If unclear from the claims or specification whether the tubular object is nonself-supporting, place the original in subclasses 35.7+ and generally cross to subclasses 35.2+.