US5069691B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable filtration unit
Assignee: Abatement Technologies Inc
•
Filing: 1990-11-14
•
Granted: 1996-11-05
•
Expires: 2010-11-14
Abstract
No abstract record available.
Inventors
- 👤 Terrell Travis
- 👤 David Shagott
- 👤 Gary Kruse
- 👤 Daniel Sutherland
- 👤 Blair Harber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:59
CPC Classifications
A; A47; A47L; A47L5/00; A47L5/12; A47L5/22; A47L5/38
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) | 1999-11-05 | 2000-05-06 | 2000-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-11-05 | 2004-05-06 | 2004-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-11-05 | 2008-05-06 | 2008-11-05 | $7700.00 | Window Closed / Lapsed |