.~ Plural elements, with passageway unobstructed from side to opposite side
DEFINITION
Classification: 44/521
Plural elements, with passageway unobstructed from side to opposite side:
(under subclass 520) Subject matter in which the fuel product comprises one integral fuel element attached to another element, the gas passageway extends from one side all the way through to an opposite side of the product, and no material obstructs the void.
(1) Note. A criterion for considering a passageway as being unobstructed is whether light can pass through the passageway.
