{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8509404","patent":{"patent_number":"US-8509404","title":"Prepaid automatic dialer","assignee":null,"inventors":[],"filing_date":"2010-03-26T00:00:00.000Z","publication_date":"2013-08-13T00:00:00.000Z","cpc_codes":["H04M","H04M","H04M","H04M","H04M","H04M","H04M"],"num_claims":20,"abstract":"A user device is configured to download an autodialer application that permits a user, of the user device, to purchase a prepaid calling plan and make calls using the prepaid calling plan; receive an instruction to purchase the prepaid calling plan; receive payment to establish a prepaid balance associated with the prepaid calling plan; present confirmation information when the payment is received, the confirmation information including the prepaid balance and access information; receive a request to make a call using the prepaid calling plan, the request including a number corresponding to a destination user device; call the destination user device using the number corresponding to the destination user device and the access information; determine a duration of the call to the destination user device; compute a cost of the call based on the duration of the call; and update the prepaid balance based on the cost of the call."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Prepaid automatic dialer","description":"A user device is configured to download an autodialer application that permits a user, of the user device, to purchase a prepaid calling plan and make calls using the prepaid calling plan; receive an ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8509404","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-8509404","citation_suggestion":"Patentable. \"Prepaid automatic dialer\" (US-8509404). https://patentable.app/patents/US-8509404","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8509404","json":"https://patentable.app/api/llm-context/US-8509404","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T13:17:05.425Z"}