Only if it's used casually as a generic term. Keeping it uppercased proper noun (Frisbee) respects the trademark as far as the law is concerned, so that was the

Only if it's used casually as a generic term. Keeping it uppercased proper noun (Frisbee) respects the trademark as far as the law is concerned, so that was the Associated Press guideline. Adding [TM] lets the owner emphasize that the trademark was applied for, (R) means it's fully registered, but neither symbol is required for mentioning the brand in print -- just simple capitalization is enough to respect the trademark.