Upon the sale or transfer during any quarterly period of a business on account of which a license fee or tax is required by this chapter, the purchaser or transferee shall, if the fee or tax has not been paid in full for that period, be responsible for the payment of the fee or tax for that portion of the quarterly period during which he carries on such business. (Ord. M-769 §4, 1965: Ord. M-203 §15, 1954)