FAQ on patent


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How can patents be worldwide/

At present, you cannot obtain a universal “world patent” or “international patent”. Patents are territorial rights. In general, an application for a patent must be filed, and the patent granted and enforced, in each country in which you seek patent protection for your invention, in accordance with the law of that country. 


How long is a patent good for?

20 years
A U.S. utility patent, explained above, is generally granted for 20 years from the date the patentapplication is filed; however, periodic fees are required to maintain the enforceability of the patent. A design patent is generally granted protection for 14 years measured from the date the design patent is granted.


How much Cost for a patent in Bangladesh?

Application fee is Tk. 10,000/-(Ten thousands )only for 25 pages of specification and 10 claims. More than 25 pages and 10 claims each page and each claim will be charged at Tk. 100/- (One hundred) only.


How much does it cost to patent an invention?

The costs vary considerably from country to country (and even within a country).