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Public record
US 6,595,858 expired on 1 Jun 2020
One patent as the register shows it on 9 Nov 2026; dates and status from the patent office page.
Facts
Nintendo Co., Ltd., GAME FREAK inc. and Creatures Inc. hold the grant; 2 inventors named
| Publication | US6595858B1 |
|---|---|
| Title | Image-display game system |
| Assignees | Nintendo Co., Ltd., GAME FREAK inc. and Creatures Inc. |
| Inventors named on the patent | Satoshi Tajiri; Tsunekazu Ishihara |
| Application | US 09/583,861 |
| Priority | 26 Aug 1999: JP 11-283279 (26 Aug 1999); JP 11-330725 (19 Nov 1999) |
| Filed | 1 Jun 2000 |
| Granted | 22 Jul 2003 |
| Expiry | 1 Jun 2020 (anticipated expiration shown by Google Patents, 20 years from filing) |
| Status | Expired |
| Claims | 17 claims; independent claims 1, 6 |
| Family | JP 4372290 B2; JP 2001-129243 A |
| Register events | Assignment 29 Aug 2000; Grant 2 Jul 2003 (issue date 22 Jul 2003); Maintenance fees paid for years 4, 8 and 12 (2007, 2010, 2014) |
What it covers
2 independent claims out of 17
A game system that keeps an infection data area for each captured character in temporary storage. When a set condition is met the program writes infection data into that area, so the captured character carries a virus state that the game can act on. Independent claim 1 is the system and claim 6 a second system claim. The description matches the Pokérus mechanic introduced in 1999.
Summary written from the claims and abstract in plain words; it is not the claim text and not an opinion on scope.