When you conduct the online patent searches, you'll be able to read the full text of the patents and see diagrams. Don't be discouraged if you do find your invention idea is already patented. You may be able to come up with a variation that's not patented...And double check the patent. Sometimes, what looks like the same invention idea may actually be quite different. Some of the free searches may not involve a complete search of all granted patent archives and patent applications for all time. You may want to consider hiring a registered patent attorney to find this information for you.Typical Filing Fees for an Independent Inventor
$625 - $825 for the filing fee with no more than 3 claims, which is non-refundable whether or not a patent is granted. This is the fee to have your application "examined" by the USPTO and your patent application may be rejected.How do i know if someone has already made and patent my idea?
i have this idea that could be worth lots of money and it would raise a certain cars safety by a lot but i dont know if some one has made it is there a website that would list patented ideas - Your best bet is to hire a professional to do a patent search for you. However, there is no way to be sure you have looked everywhere or fully considered each patent, there are just too many. However, you can get a warm fussy feeling that it PROBABLY hasn't been patented. The process of patent examination, adds another blanket of warm fussy.How much money do I need for patenting?
The amount of money you need for patenting will vary depending on the type of patent application you submit. Fees may also vary according to the way you claim your ideas.How long does patent protection last? (As of year 2005)
Utility and plant patents are granted for a term which begins with the date of the grant and usually ends 20 years from the date the applications were filed. You must make the timely payment of the appropriate maintenance fees. Design patents last 14 years from the date you are granted the patent. No maintenance fees are required for design patents.