Although, the length of utility and plant patent protection (patent term) was previously seventeen years from the date of patent grant, utility and plant patents filed after June 8, 1995 now have a patent term of up to twenty years from the date of filing of the earliest related patent application. Utility and plant patents which were applied for prior to June 8, 1995, and which were or will be in force after June 8, 1995, now have a patent term of seventeen years from the date of patent grant or twenty years from the date of filing of the earliest related patent application, whichever is longer. Utility patents are subject to the payment of periodic maintenance fees to keep the patent in force. Patent terms can be extended under some specific circumstances. See the U.S. Code Title 35 - Patents for a full description of patent laws.

If the complexities of legalities seems simple, you may want to consider becoming a patent agent or patent attorney. If you are a do-it-yourselfer (DIY), you may want to get David Pressman's book "Patent it Yourself" or David Hitchcock's book "Patent Searching Made Easy". If you are like the rest of us, this process does not seem simple. Sure it may cost some money to engage someone to guide you through this process, so you need to carefully consider your innovation in context of (1) is it patentable? and (2) is it a viable business opportunity? It may, however, be in your best interest to learn as much as you can about the system and then hire a competent patent attorney to get the job done. Just think what it would cost to great idea, poorly patented, which may ultimately cost you "like a bigillion dollars in lost royalties or something like that."

IP Street takes know-how and confidence when helping you manage your IP assets. We help you better understand the duration of a patent, the value of a patent and patent analytics.

Although most inventions will be concerned with the rights a patent grants during its monopoly or in-force period (from the date the patent issues until it expires (20 years after the filing date)), the law actually recognizes five "rights" periods in the life of an invention. (1) Invention conceived but not yet documented: When an inventor conceives of an invention, but hasn't yet made any written, signed, dated, and witness record of it, the inventor has no legal rights whatsoever, only the potential for acquiring rights. (2) Invention documented but patent application not yet filed: After making a proper, signed, dated and witnessed documentation of an invention, the inventor has valuable rights against any inventor who later conceives of the same invention and applies for a patent. An inventor who documents the building and testing of the invention has substantially greater rights than one who merely documents conception. During this period the invention may also be treated as a "trade secret" this is, kept confidential. This gives the inventor the legal right to sue and recover damages against anyone who immorally learns of the invention, for instance, through industrial spying. (3) Patent Pending - Patent application filed but not yet issued: During the patent pending period, including the one year period after a provisional patent application is filed, the inventor's rights are the same as they are in period 2 above for the most part. Otherwise, the inventor has no rights whatsoever against infringers, only the hope of a future monopoly, which doesn't commence until a patent issues. Most companies that manufacture a product this is the subject of a pending patent application will mark the product "patent pending" in order to warn potential copiers that it they copy the product, they may have to stop later if and when the patent issues. The PTO by law must keep all patent applications preserved in secrecy until the application is published or the patent issues. The patent pending period usually lasts from one to three years. (4) In-force patent - patent issued but hasn't yet expired: After the patent issues, the patent owner can bring and maintain a lawsuit for a patent infringement against anyone who makes, uses or sells the invention without permission. The patents in force period last from the date it issues until 20 years from its filing date, provided maintenance fees are paid. Nearly every patent is guaranteed an in-force period of at least 17 years. In order to assure this 17-year term, the patent will be extended, if necessary, to compensate for delays resulting from failures by the PRO in processing the patent application. Also, once the patent issues, it becomes a public record or publication that can block others who file later from getting patents on the same or similar inventions, that is, it becomes "prior art" to anyone who files after its filing date. (5) Patent expired: After the patent expires (20 years after the filing date, or sooner if a maintenance fee isn't paid), the patent owner has no further rights, although infringement suits can be brought for any infringement that occurred during the patent's in-force period. An expired patent remains a valid "prior art reference" (as of its filing date) forever. IPStreet.com's patent search tools and resources will help you better understand if your idea is patentable, the duration of a patent and complex patent analytics.

Patents to plants which are stable and reproduced by asexual reproduction, and not a potato or other edible tuber reproduced plant, are provided for by Title 35 United States Code, Section 161 which states: Whoever invents or discovers and asexually reproduces any distinct and new variety of plant, including cultivated sports, mutants, hybrids, and newly found seedlings, other than a tuber propagated plant or a plant found in an uncultivated state, may obtain a patent therefor, subject to the conditions and requirements of title. (Amended September 3, 1954, 68 Stat. 1190). The plant patent must also satisfy the general requirements of patentability. The subject matter of the application would be a plant which developed or discovered by applicant, and which has been found stable by asexual reproduction. To be patentable, it would also be required: (1) That the plant was invented or discovered and, if discovered, that the discovery was made in a cultivated area. (2)That the plant is not a plant which is excluded by statute, where the part of the plant used for asexual reproduction is not a tuber food part, as with potato or Jerusalem artichoke. (3) That the person or persons filing the application are those who actually invented the claimed plant; i.e., discovered or developed and identified or isolated the plant, and asexually reproduced the plant. (4) That the plant has not been sold or released in the United States of America more than one year prior to the date of the application. (5)That the plant has not been enabled to the public, i.e., by description in a printed publication in this country more than one year before the application for patent with an offer to sale; or by release or sale of the plant more than one year prior to application for patent. (6) That the plant be shown to differ from known, related plants by at least one distinguishing characteristic, which is more than a difference caused by growing conditions or fertility levels, etc. (7) The invention would not have been obvious to one skilled in the art at the time of invention by applicant.