US PATENT SUBCLASS 44 / 521
.~ Plural elements, with passageway unobstructed from side to opposite side


Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use



44 /   HD   FUEL AND RELATED COMPOSITIONS

520  DF  FUEL PRODUCT HAVING PASSAGEWAY FOR GAS {2}
521.~ 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.