A patent is a monopoly granted to a person for:

A monopoly granted to a person who has either invented a new and useful article, made inprovement in an existing article or invented a new process of making an article is called

A monopoly granted to a person who has either invented a new and useful article, made inprovement in an existing article or invented a new process of making an article is called

A monopoly granted to a person who as either invented a new and useful article, made improvement in an article or invented a new process of making an article is called

A monopoly granted to a person who has either invented a new and useful article, made inprovement in an existing article or invented a new process of making an article is called

Patent is not granted for: