{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8543608","patent":{"patent_number":"US-8543608","title":"Handling of expired web pages","assignee":null,"inventors":[],"filing_date":"2009-09-10T00:00:00.000Z","publication_date":"2013-09-24T00:00:00.000Z","cpc_codes":["H04L","H04L"],"num_claims":18,"abstract":"Information indicating a time of validity of content of a web page is maintained as meta data within the page itself. A content server, in response to receipt of a request for the web page, determines whether web page has expired. If the content is determined not to have expired, the content server forwards the web page to the requesting user without modification. However, if the content is determined to have expired, the content server adds a warning tag in the content section of the page specifying that the content has expired, and then forwards the page to the requesting user, thereby alert the user of the expiry. In addition, the content server may obtain an updated web page, which may then be provided in response to future requests for the web page."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Handling of expired web pages","description":"Information indicating a time of validity of content of a web page is maintained as meta data within the page itself. A content server, in response to receipt of a request for the web page, determines","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8543608","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-8543608","citation_suggestion":"Patentable. \"Handling of expired web pages\" (US-8543608). https://patentable.app/patents/US-8543608","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8543608","json":"https://patentable.app/api/llm-context/US-8543608","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T13:41:39.676Z"}