serve notice

One who desires to assert his right to the possession of a horse by virtue of his lien must ascertain the real owner and serve notice on him.

Those same philosophy articles then immediately serve notice that, for simplicity, they will discuss only belief.

"One white man." said Bill, after a brief inspection. "Out on his line, I s'pose, and there's no tellin' when he'll be back. So we won't wait. We'll just serve notice on him."