US4599115B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
US4599115B1 - - Google Patents
Assignee: Mitsubishi Kasei Techno Engineers Ltd
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Filing: 1984-07-24
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Granted: 1988-06-28
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Expires: 2004-07-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:45
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/02; B01D53/06; B01D53/08; B01D15/00; B01D15/08; B01D15/10; B01D15/18; B01D15/1814; B01D15/1821; B01D15/1828; B01D53/04; B01D53/0454; C; C13; C13K; C13K13/00; C13K13/007; C13K3/00; B01D2256/00; B01D2256/24; B01D2259/00; B01D2259/40; B01D2259/404; B01D2259/41; B01D53/0407; B01D53/0446
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-06-28 | 1991-12-28 | 1992-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-06-28 | 1995-12-28 | 1996-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-06-28 | 1999-12-28 | 2000-06-28 | $7700.00 | Window Closed / Lapsed |