Patents are expensive. Obtaining a patent starts at about $1000 and rises quickly from there. If you hire a patent lawyer, expect to pay roughly $300 to $800 per hour or more. However, despite the costs, protecting your unique product is often worth it. You should carefully research the patent process, but here are the basic steps to preparing yourself for applying to obtain a patent:
Compile your notes and research in an organized manner. You may be required to prove that you indeed did invent the product or device.
Research to make sure a similar item doesn't already exist. If you find similar items, be prepared to show how your invention is different.
Make sure your item is eligible to be patented. Do not start selling your product before you've filed a provisional application for patent.
Perform a patent search to make sure, to the best of your ability, that your invention is indeed a new one.
File your application with the United States Patent and Trademark Office (USPTO).