.~.~ Next to natural rubber, gum, oil, rosin, wax, bituminous or tarry residue
DEFINITION
Classification: 428/440
(under subclass 426) Product in which a layer Next to the quartz or glass contains natural rubber*, natural gum*, natural oil*, rosin*, wax* or (bituminous or tarry residue*).
(1) Note. A patent claiming a laminate containing a layer comprising a synthetic rubber will usually be found in the subclass directed to an addition polymer from unsaturated monomers* or the indented subclasses or, in the case of polysulfide synthetic rubber, will be found in the polythioether subclass.
SEE OR SEARCH THIS CLASS, SUBCLASS:
419, for polysulfide synthetic rubber next to glass and see (1) Note above.
441+, for synthetic rubber next to glass; and see (1) Note above.
