Which of the following is true of utility patents? Select one:
AThey are implemented to protect intangible abstractions.
BThey are valid for the lifetime of the inventor.
CThey are used to patent machines and processes.
DThey are obtained for the ornamental nonfunctional design of an item.
AThey are implemented to protect intangible abstractions.
BThey are valid for the lifetime of the inventor.
CThey are used to patent machines and processes.
DThey are obtained for the ornamental nonfunctional design of an item.