premise: (c) Confidential Information does not include any information that Receiving Party can document:  (i) is or becomes generally known to the public without fault of Receiving Party;  (ii) was in its possession without any obligation of confidentiality prior to receipt thereof from Disclosing Party;  (iii) is independently developed by Receiving Party without use of or reference to the Confidential Information of Disclosing Party; or  (iv) is rightfully obtained by Receiving Party from a third party without any obligation of confidentiality to Disclosing Party.