A patent is a license that allows an inventor to be the only person or company allowed to make, use, or sell a specific invention. The patent is granted by the United States Patent and Trademark Office (USPTO) after the submission of an application and drawings. If that invention is not already patented, the inventor receives a patent after the materials are reviewed. Patents do not last forever, though, and they can lapse, providing the opportunity for someone else possibly to purchase the expired patent.
If the patent is past the 20- or 14-year mark (depending on the type of patent), you cannot renew the patent, but you can still own the product and any other materials and information you purchase from the inventor.
The journey of an inventor is long and hard. It involved treading into unknown sphere. It is a risky business and time-consuming. The chance of failure far exceeds the chance of success. However, upon success, the commercial gain can be significant and the joy is immense
You have seen many inventors and entrepreneurs became successful. And you wished to be like one of them. This is normal and in fact I encourage you to look up at them as your role model. They are successful because they worked very hard work and also possessed a few special skills that made them different from others. You too can be like them if you try hard enough to learn the finer skills from them. 781b155fdc