I  am a lawyer in CT and practice in this area of the law.  The hospital should be able to get your mom the records within a few days.  there is no set rule that i am aware of for purposes of a time limit.  However, if you go to the hospital you can obtain the records that day or within 3 days or so depending on how much there is to be copied.  More importantly, you are having an issue getting information as a result of the HIPPA laws.  Unless your mom provides a written HIPPA release document to the hospital the hospital is required by law to refuse to provide you information regarding your mom's health.  I suggest that you mom provide you with authorization so you may obtain the records and i would hire a lawyer if you continue to have trouble.