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Felix Hoffmann, a German chemist, was searching for something to relieve his father's arthritis. In doing so, he "rediscovered" acetylsalicylic acid and in 1900, patented a stable process for developing it. Hence, we have aspirin.
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US Patent 5329578 - Personal communication service with mobility manager
US Patent Issued on July 12, 1994
Estimated Patent Expiration Date:
May 26, 2012Estimated 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.
Estimated Patent Expiration Date:
May 26, 2012Estimated 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.AbstractA system for providing personal communication services (PCS) is described, wherein a subscriber can tailor the telephone service to provide communication mobility and incoming call management. Calls to a personal number assigned to the subscriber are routed to a PCS service node which will re-route the call according to the subscriber's service profile stored in a database. The service node insures that attempts to communicate with the subscriber are handled with appropriate consideration for who is calling, when the call is made, and the urgency of the call. In addition, the subscriber is given control over how the system will work for them in routing incoming calls.Other References
| InventorsAssigneeApplicationNo. 887758 filed on 05/26/1992US Classes:379/211.03, Sequential ringing379/88.15, Pager activation379/88.19, Call source identification379/88.25, Message storage in centralized location (e.g., central office, PBX, etc.)379/196, At switching center379/207.03, Time (e.g., time of day, expiration of time period, time zone, date)379/207.15, Automatic number identification or calling number identification (ANI or CLID)379/245, Identification455/414.1, Special service455/417, Call diversion455/445, Call routing (e.g., to prevent backhaul, routing efficiency, least cost, or alternate routing)455/461Including personal numbering system (i.e., intelligent network for subscriber tracking or follow-me subscriber feature)Field of Search379/196At switching centerExaminersPrimary: Dwyer, James L.Assistant: Tsang, Fan Attorney, Agent or FirmUS Patent References4313035, Method of providing person locator serviceIssued on: 01/26/1982 Inventor: Jordan , et al.4850012, Automated access facilities for use with key telephone systems Issued on: 07/18/1989 Inventor: Mehta , et al.4893335, Remote access telephone control system Issued on: 01/09/1990 Inventor: Fuller, et al.4942598, Telephone answering machine in paging systems with automatic number identification based message operations Issued on: 07/17/1990 Inventor: Davis5023868, Automated call handling apparatus Issued on: 06/11/1991 Inventor: Davidson, et al.5222125, System for providing personalized telephone calling features Issued on: 06/22/1993 Inventor: Creswell, et al.5239577Network and method for providing cross-media connections Issued on: 08/24/1993 Inventor: Bates, et al. International ClassesH04M 001/64H04M 003/42 |
