definiens: means the gross revenue of the Lic ensed Product(s ) in the form in which it is sold or used, whether or not as sembled ( and without excluding therefrom any components or subassem blies thereof, whatever their origin and whether or not patent impacted ), le ss the following items but only insofar as they actually pertain to the -3- < PAGE > disposition of such Licensed Product(s ) by GEN -PROBE and/or sublicensee(s ) and are included in such gross income, and ( ex cept Items ( d ) and ( e ) ) are separately billed : ( a ) Import, export, excise, and sales ta xes, plus custom duties ; ( b ) Cost of insurance, from the place of manufacture or point of installation, packing, and transport ation to the customer 's premises or point of installation ; ( c ) Costs of installation at the place o f use ; ( d ) Credit for returns, rejections, reca lls, allowances, or trades ; and ( e ) a reasonable allocation for the rent al of an instrument when the product is sold under a reagent rent al program, except where the instrument is a Licensed Product