U.S. patents subclasses for class: Flexible Bags


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Title
Additional layer of material at element attachment location
Adhesive
Adhesive bond
Annular gasket
Aperture extends through closure flap
Attached to bag frame
Attached to distinct end wall
BAG CLOSURE SECURED BY A RELEASABLE OR FRANGIBLE BOND (E.G., PEEL SEAL)
BAG HAVING MEANS TO FACILITATE OPENING IT BY SEVERING BAG MATERIAL OR BAG PART (E.G., TEARING, CUTTING, PIERCING, ETC.)
Bag includes opening through bag material to receive element
Bag material includes aperture for rodlike support
Bag material includes hand-receiving aperture
Bag portion completely separated from the bag during tearing
Bag walls designed to be rolled together or folded on common fold line
Barrier layer or ply (e.g., waterproof)
BIODEGRADABLE FEATURE
Cap-type
Closed loop
Closure flap
Closure includes inwardly folded bag wall portions
Closure within bag
Coating or lamination
Combined with, or modified for opening by, a sharp-edged cutting implement or a piercing implement
Compartment-forming member secured to backing
COMPARTMENTED
CONVERTIBLE
Cord, string, wire, or thread
DEAD FOLD (DUCTILE) CLOSURE ELEMENT
Detachable
DISPENSING FEATURE
Element extends around side edge
Element extends substantially 180 degrees or more around roll or fold
Elongated clamping elements
END STRUCTURE (E.G. BOTTOM)
Extending across bag bottom
Extending axially through bag interior to bag bottom
Extension formed by cuts in bag wall
FILLING TUBE
Flap side edges permanently secured to bag (e.g., sandwich bag type)
Fluid circulates between bag plies
Foldable to form distinct end wall
Folded bag corner
For access opening in bag bottom
For access opening in sidewall
Formed by folding bag walls on common fold line and joining together
FREE-STANDING
Gathered bag mouth
Hanging element
Having another independent closure for same access opening
Having drawstring-type element

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