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This video will show you how to locate a US patent document if you have the patent number.
The US Patent and Trademark Office PatFT database provides access to every patent issued by
the US government.
You can retrieve a known patent by using the patent number search.
Select the number search option from PatFT patents home page.
In the query box, enter the patent number and click the search button.
For example 5960411
The database will return either an html version of the patent or for older patents it will
only display the patent number, issue date, and current classification.
To view the original patent document click the images link at the top.
Each page of the patent is displayed as a PDF file.
Click the Full Pages link to get the full patent.