Gentlemen,
I am in no way trying to confuse the issue but some of you may find this resource of interest:
http://www.iuscomp.org/gla/statutes/UrhG.htm (Sections V, VI, and VII are the relevant ones.)
I disagree with Franek regarding paper disintegrating. Granted, storage is an issue, but I have recently purchased periodicals printed on poor paper from the early 1900s. And Civil War era (mid 1800s) newspapers are available on eBay. I've seen them. A friend of mine recently contacted me about a Land Grant document signed by President Grant, dated shortly after the Civil War.
Regards,
Ed