"'To be realistic, it's going to be fairly thick. Cloak is a misnomer. Shield might be more appropriate,' he said."
The Invisible Protective Shield!
Forget the Romulans (who, if Star Trek's timeline were correct, have cloaking technology right now)...
Proctor and Gamble had that tech 50 years ago! They called it Gardol, and they claimed it as an ingredient of Colgate toothpaste. It could stop line drives, according to the TV ads.
Funny how some things never change: Hoping to find images from the commercials, I Googled the phrase and discovered that Aquafresh is using it now.