Though they could use those public domain materials for free, they had to make copies of the film at their own expense.

Library was a pioneer in digitizing public domain materials.

Much of this article is based on public domain material from the U.S. government.

Much of the programming consisted of public domain material, and the station was virtually ignored by local advertisers.

Different parties have also contested that various aspects are public domain material and therefore ineligible for trademark or copyright status.

Apart from the copyright implications, a market clearly exists for databases combining text with facts or other public domain materials.

The Project gratefully accepts contributions of money, time, public domain materials, or royalty free copyright licenses.

In the meantime, there is no shortage of public domain materials.

This article contains public domain material from the Naval Historical Center.

As the Internet is mostly public domain material, information gathered is less likely to result in insights that will be unique to the company.