This is the largest collection of U.S. patent references available in an online database. Design and plant patents are available from December 1976 forward.
Earlier records contain basic bibliographic data and the exemplary claims only.
Provisional application data, extracted by Dialog from the fulltext of U.S. patents, is also included. Patents Legal Status covers patent post-issue actions such as reassignments, extensions, reexaminations, and disclaimers. Under no circumstances may copies under the provision be offered for resale or sale.