So next what is the cost for going for filing a patent. Information in the prior art can help serve

For the individual inventor (someone working on their own without the backing of a large corporation), the costs of obtaining a patent can be prohibitive. When a patent reaches its expiration date the use of the invention is open to all interested parties. Corporations sponsor R & D departments because they are assured monetary benefit from spending the time and effort to come up with something new.

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