System, method and computer program product for maintaining group hits tables and document index tables for the purpose of searching through individual documents and groups of documents
Patent 5848409 Issued on December 8, 1998. Estimated Expiration Date: August 4, 2017. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
A system for searching through documents maintained in electronic form is described. The system is capable of searching through individual documents, or groups of documents. In the case of a group of documents, the system operates by locating one or more hit entries in a group hits table associated with a keyword in a search request. Each of the located hit entries corresponds to a different document in which the keyword appears. The system extracts from the located hit entries hit information indicating the number of times the keyword appears in documents respectively associated with the located hit entries. This hit information is presented to a user, and a command identifying one of the documents respectively associated with the located hit entries is received from the user. The system then locates one or more location entries in a document index table associated with the identified document. These located location entries are associated with the keyword, and each of the located location entries corresponds to a different occurrence of the keyword in the identified document. The system then presents to the user portions of the identified document containing occurrences of the keyword as identified by the located location entries.
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August 4, 2017. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
