US4770674B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas conditioning for an electrostatic precipitator
Assignee: NEPTUNE TECHNOLOGIES
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Filing: 1984-08-06
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Granted: 1993-01-19
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Expires: 2004-08-06
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 07:03
CPC Classifications
B; B03; B03C; B03C3/00; B03C3/01; B03C3/013; C; C01; C01B; C01B17/00; C01B17/69; C01B17/74
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) | 1996-01-19 | 1996-07-20 | 1997-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-01-19 | 2000-07-20 | 2001-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-01-19 | 2004-07-20 | 2005-01-19 | $7700.00 | Window Closed / Lapsed |