For how long does a patent give a firm the exclusive legal right to a product?

Name: For how long does a patent give a firm the exclusive legal right to a product?
Brand: Quizplus
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Question

Quizplus · Accepted Answer

Under most circumstances, a patent gives a firm the exclusive legal right to a product for a period of 20 years from the date of filing the application with the patent office. After this time, the product becomes part of the public domain and may be freely used by others.

For How Long Does a Patent Give a Firm the Exclusive