Assertion: copyright's right | /r/CapableOf | offer the invention
Facets:
value: for sale
type: PURPOSE
value: for up to 20 years
type: TEMPORAL
Source sentences:
text: A patent indicates that the inventor (or patent owner) now has the right to make, use, import, sell, and offer for sale the invention for up to 20 years (the length of time that the patent is valid).