On request the special status is awarded automatically and free of charge. And keep inventing. No, it's not money from heaven. The title comes from Broadway, and applies to wealthy persons who financially back stage shows. In recent years this title has been adopted by persons who back inventors and entrepreneurs.
Angels come in all kinds of personalities and backgrounds.
Most inventors need guidance, especially in the marketing arena. An angel is often an expert in marketing, or knows how to plug this gap. In a sense, an angel is cautious guardian of your mutual interests. He or she is concerned about all of the essential ingredients that will drive your invention from its present state to that of an extraordinary profit producer. If you've invented a better mousetrap, forget angels.