What is the Process to Maintain a Patent – Get InventHelp Services? When you first receive your patent, the next step is to pay the fee. You can start making payments six months prior to the due date, and late fees and penalties will begin as soon as you miss the deadline. If you fall six months behind on the fees, your patent will lapse. There are various fees for maintaining a patent, and the biggest fee is paid by large entities with 500 or more employees. Small entities, on the other hand, usually pay only half of the fee. https://publicistpaper.com/what-is-the-process-to-maintain-a-patent...