Is my idea already patented?
Most inventors dont really want to find their invention in someone elses patent, so the spend 5 minutes looking and then declare that they can't find it. It takes longer than that. If your invention is a mouse trap, you might find it by searching for those words...but the killer patent might instead describe a rodent restriction device or an automatic small animal containment system. Look for it like you want to find it. Talk to a registered patent attorney for immediate advice on protecting your idea (in the form of a provisional patent) while you determine if it is worth pursuing, in view of a preliminary search of related inventions, patented or not. Even if you don't find any "patents" showing your idea used in an invention, it could still be unpatentable because someone else used it or described it before you filed your provisional application.How to Patent Your Idea
Contrary to popular belief, you can't get a patent for something that's still in idea form; you must be able to apply your idea in a concrete way. This doesn't mean that you have to build a prototype of your invention before you can get a patent. However, you have to be able to draw or describe it in enough detail so that someone else could make it and use it. Have a question? Get an answer from a lawyer now!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.What Does Useful Mean?
The patent law specifies that inventions must be useful, which means have a useful purpose. Being useful also includes operativeness, meaning that an invention must operate or perform its intended purpose.How Much Does It Cost For a Patent?
The U.S. Patent and Trademark Office (USPTO) establishes fees for patenting unique, non-obvious inventions. Because there are different types of patents, these fees vary, depending on those due at the time of the initial application and during the maintenance intervals required during a patent's 20-year life. A filing fee, search fee and examination fee are due with an initial application. Patent applications with more than 3 claims are subject to additional charges. It is important to note that fee structures are not static. The below represent the USPTO 2009 fee schedule and apply to patents filed on or after December 8, 2004. Initial Filing Fee - The initial filing fee for a utility patient is $330. Initial filing fees for design and plant patents are $220. Patent Search Fees - The search fee is $540 for a utility patent; $100 for a design patent; and $330 for a plant patent. Patent Examination Fees - The examination fee is $220 for a utility patent; $140 for a design patent; and $170 for a plant patent. Patent Maintenance Fees - The maintenance fee for patents is $980 at the 3.5-year interval; $2,480 at the 7.5-year interval; and $4,110 at the 11.5-year interval. Other Applicable Fees - Other fees may be necessary during the prosecution of a patent and the patent's 20-year term. These may include extension of time fees, post-issuance fees, financial service (administrative) fees and trademark processing fees. Additional fees will be incurred if a patent application needs to be appealed. Fees for Additional Claims - If a patent application contains more than 3 claims, an additional $220 is charged (per claim). The cost of more than 10 claims is $52 per claim.