Assertion: patent | /r/HasProperty | effective
Facets:
value: in the country
type: LOCATION
Source sentences:
text: In order to get a patent or trademark or to register a copyright in America, inventors, creators, and artists must apply through the United States Patent and Trademark Office (USPTO) in Alexandria, Virginia; in general, patents are only effective in the country for which they are granted.
text: Patents are effective for 20 years from the date of filing.