product_product_utility/views/template.xml

<openerp>
    <data>
        <template id="product_product_utility.eiru_assets" name="product_product_utility_assets" inherit_id="eiru_assets.assets">
            <xpath expr="." position="inside">
                <link rel="stylesheet" href="/product_product_utility/static/src/css/style.css"/>
                <script type="text/javascript" src="/product_product_utility/static/src/js/product_product_utility.js"/>
            </xpath>
        </template>
    </data>
</openerp>