Patent record
US4903201
Automated futures trading exchange
| Assignee | World Energy Exchange Corporation |
|---|---|
| Filed | 1983-11-03 |
| Granted | 1990-02-20 |
| Status | expired term |
| Est. term end | 2007-02-20 |
| Fee lapse date | — |
| CPC codes | G06Q40/04 |
Dates here are estimates from patent-term math (20 years from filing, or the older 17-from-grant/20-from-filing rule for pre-1995 filings), not a legal determination. They ignore patent-term adjustments, extensions, and terminal disclaimers, and don't reflect maintenance-fee lapses that haven't happened yet. This is not legal advice.