rawlings purchased a typewriter from kroll typewriter co. for $600. at the time of the purchase, he made an initial payment of $75 and agreed to pay the balance in monthly installments. a security agreement that complied with the ucc was prepared, but no financing statement was ever filed for the transaction. rawlings, at a time when he still owed a balance on the typewriter and without the consent of kroll, sold the typewriter to a neighbor. the neighbor, who had no knowledge of the security interest, used the typewriter in her home. could kroll repossess the typewriter from the neighbor