Use our InterLibrary Loan service. Ask at the Reference Desk. Our Agricultural Statistics site provides descriptions, call numbers and links to production and trade information and datasets, and commodity markets. U.S. Patent and Trademark Office Includes searchable bibliographic and full text databases of patents back to January 1, 1976. The full text database includes either a text file directly viewable with a web browser, or an image version, requiring a TIFF G4 plug-in for your browser.
Drawings are viewable only with the image version.
Other patent information and links . Also, check basic reference books on subject areas-many have chapters outlining regulations. Each search engine is different in scope, speed, power, indexing criteria and search system. If one search engine doesn't work, try another. For tips go to our Evaluating Web Resources page.