Registered Trademarks

Q. CMOS 8.154 covers lowercase and CamelCase trade names, but it doesn’t specify how to deal with wordmarks that are partly in italics. I would prefer to set them the same way as any other word, but I would also love an official ruling on this!

Q. Is it proper or necessary to use the circled R each and every time the registered trademark name is used in a document? What is the correct usage for the symbol?

Q. When using “Google” as a verb—Googled, Googling, etc.—should it be capitalized? Even if one is not referring necessarily to the use of the official Google website, but merely using “google” loosely as a synonym for checking something out?