The need for a patent search

When does the need for a patent search arise? Well anybody who would deem a patent necessary for his or her invention will first go for a patent search. This is important in terms of securing a patent for oneself. It should never be assumed that products that are not marketed are unpatented. There are so many instances of a patented product not being sold at all. Keep in mind that a patent is valid for a period of 20 years and may be a product failing within this period. It should not be assumed that the patent has expired. Do a patent search preferably with 20 years and below.

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