US Copyright Group was created in 2010.
US Airways Group was created in 1939.
Yes, under US copyright laws, creative works of authorship by officers or employees of the federal government have no copyright, making them public domain. However, not everything published by the US government was created by the federal government and other authors or publishers may retain copyright ownership. For example, an author could license the US to publish something or the US could contract to have some work created, where the independent contractor owns the copyright.
Copyright - band - was created in 1990.
The Copyright Association was created in 1872.
If you created it, you hold the copyright. To help enforce that right, you should clearly mark the item as being copyrighted. To bring a lawsuit, you will have to copyright the item through official channels through the Copyright Officer of the US Government.
Write: Copyright 2011 by Your Name Even that isn't required. If you created it and can prove it, you own the copyright. If you intend to bring suit, you have to fill out the forms and pay the fee to the US government (if you live in the US).
Copyright Agency - Azerbaijan - was created in 1993.
The Uneasy Case for Copyright was created in 1970.
The Copyright Licensing Agency was created in 1983.
Copyright in Historical Perspective was created in 1968.
Copyright Criminals was created on 2010-01-18.
It depends on when the work was created. For works created before 1989, it may be required; the courts have not ruled as to whether a copyright notice is required on works first created before the U.S. became part of the Berne Union. For works created after 1988 the answer is simple. No. A copyright symbol has not been necessary in the US since 1989. There are advantages to putting the copyright symbol or copyright notice on a work even if not required, including eliminating the "innocent infringer" defense.