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How long does patent protection last?

20 years

30 years

50 years

70 years

A patent is a set of exclusive rights granted by a sovereign state to an inventor or assignee for a limited period of time in exchange for detailed public disclosure of an invention. Patent protection is granted for a limited period, generally 20 years from the filing date of the application.

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1

Jure Repinc wikipedia → Patent

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Answers by country

Australia

82%

0%

5%

11%

17

the United States

62%

11%

18%

7%

27

Greece

54%

9%

27%

9%

11

Germany

47%

25%

16%

10%

55

Poland

40%

20%

28%

10%

1280

the United Kingdom

31%

21%

26%

21%

19

Austria

29%

54%

8%

8%

24

Which organization had an office of devil's advocate?

High Court of England and Wales

Nuremberg Military Tribunals

Roman Catholic Church

What is a muslim judge called?

Who is protected by the "principle of non-refoulement"?

unborn children

political prisoners

What happens to a patent when it expires?

it becomes the property of the state

ownership rights are inherited

the patent is licensed

It becomes public domain