Licensing management system and method in which datagrams including an address of a licensee and indicative of use of a licensed product are sent from the licensee's site
August 17, 2016. 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.Patent ReferencesToken-control Method and system for controlling use of protected software Software protection system with trial period usage code and unlimited use unlocking code both recorded on program storage media Monitoring and reporting system for remote terminals Low-powered remote sensor Software licensing management system Database usage metering and protection system and method Metering retrieval of encrypted data stored in customer data retrieval terminal System with software usage timer and counter for allowing limited use but preventing continued unauthorized use of protected software Network license server InventorAssigneeApplicationNo. 907934 filed on 06/29/1992US Classes:705/59, Licensing705/32, Time accounting (time and attendance, monitoring billable hours)705/44, Requiring authorization or authentication705/77, Including remote charge determination or related payment system705/412Utility usageExaminersPrimary: Kim, Kenneth S.Attorney, Agent or FirmInternational ClassG06F 017/60AbstractA license management system and method for recording the use of a licensed product, and for controlling its use in accordance with the terms of the license. A licensed product invokes a license check monitor at regular time intervals. The monitor generates request datagrams which identify the licensee and the product and sends the request datagrams over a communications facility to a license control system. The license control system maintains a record of the received datagrams, and compares the received datagrams to data stored in its licensee database. Consequently, the license control system transmits reply datagrams with either a denial or an approval message to the monitor. The monitor terminates further use of the product if it receives a denial message. The monitor generates its own denial message if its request datagrams are unanswered after a predetermined interval of time. The datagrams are counted at the control system to provide billing information.Other References
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