As a service to my customers, US patent prosecution files can be copied for 95 cents per page. Most files can be provided within a few days and can be shipped via overnight delivery. US patents can also be provided for $2.00 each.

More recent files are available for downloading directly from the US patent office. Before requesting a file, check for electronic availability on USPTO PAIR:

http://portal.uspto.gov/external/portal/pair

These files can also be provided by VanSant Patent Services