The U.S. Patent
and Trademark Office
has a great deal of information available to the public concerning the
obtaining and maintenance of patents, as well as search facilities for
issued patents and published patent applications. The Office does not
offer legal advice.
Google also maintains a large database of patents,
as well as keyword search facilities.
If you need to download a U.S. patent or patent application
publication, a little website called pat2pdf will
make a PDF document for you as needed for free.
DISCLAIMER: The information presented on
this website is not suitable to use as legal advice; it is intended
only to acquaint interested persons with concepts of an introductory
nature such that a productive conversation with a legal professional
can be held. Do not use the information here in substitution for the
assistance of a competent legally-trained professional.