What did extending the franchise in the united states mean?

In a franchise a trademark and the methods of a business can be used by a franchisee for a percentage of the monthly sales and a royalty fee.  The franchisee has the right to use the techniques, trademarks and distribute products for a set time according to a mutual agreement.  Extending the franchise means extending the time the franchisee uses the franchise.  

(202 bc - 220 ad) dynasty started by lui bang; a great and long-lasting rule, it discarded the harsh policies of the qin dynasty and adopted confucian principles; han rulers chose officials who passed the civil service exams rather than birth; it was a time of prosperity