premise: The Receiving Party shall have no obligation with respect to information which:  (i) was rightfully in possession of or known to the Receiving Party without any obligation of confidentiality prior to receiving it from the Disclosing Party, as evidenced by the Receiving Party’s records;  (ii) is or becomes part of the public domain without breach of this Agreement by Receiving Party;  (iii) becomes known or available to Receiving Party from a source other than the Disclosing Party with the legal right to use and disclose such information;  (iv) is independently developed by the Receiving Party without use of the Confidential Information; or 