Is (C) a copyright mark?

>I know that (c) notices are not required,

Is there any case law or other persuasive info as to whether the text approximation (C) is an adequate substitute for the C-in-a-circle specified in US copyright law? The circulars from the copyright office suggest not to use variants but are otherwise vague.

Since it's just as easy to put the explicitly valid Copr. in text documents, I've never understood why anyone uses (C).

Regards,
John Levine, johnl[_at_]taugh.com, Taughannock Networks, Trumansburg NY http://www.taugh.com Received on Thu Feb 17 2005 - 04:35:45 GMT