Matt:
Try the following URLs:
http://ep.espacenet.com/ - a free patent database hosted and maintained by the European Patent Office; provides full images of U.S. patents dating back to 1920 (Note: the earlier patents may not contain complete information). You can search by title, inventor; applicant, etc.
http://www.delphion.com/ - the Delphion Intellectual Property Network, no longer IBM, hosts this website; the U.S. collection contains full images of patents dating back to 1790 (again, the coverage may be spotty); you can conduct free keyword searches, but a subscription is required to order documents, check legal statuses, obtain patent families, etc.
http://www.uspto.gov/web/offices/ac/ido/ptdl/ptdlib_1.html - provides a list of PTDLs (Patent and Trademark Depository Libraries) located across the country; visiting or calling a PTDL may be your best bet in receiving expert assistance.
Hope this helps!
José Diaz
Reference Law Librarian
Scully, Scott, Murphy & Presser
400 Garden City Plaza
Suite 300
Garden City, NY 11530
Tel. No. (516) 742-4343
"Any opinions stated are those of the author and are not the official opinion of Scully, Scott, Murphy & Presser."
----- Original Message -----
From: "Matt Morrison" <mmmorr0@pop.uky.edu>
To: <law-lib@ucdavis.edu>
Sent: Thursday, May 31, 2001 2:53 PM
Subject: Old Patents
> Does anyone ave any suggestions for locating old patents--early 1900s--when
> the patent number is unknown? I've been searching the USPTO site to no avail.
>
> Any help from the IP pros would be greatly appreciated.
>
> Matt Morrison
> Reference/Electronic Information Services Librarian
> University of Kentucky
> College of Law Library
> Lexington, KY 40506
>
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