US5089144B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filter condition indicator having moveable sensor and aggregate flow counter
Assignee: Amway Corp
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Filing: 1989-12-08
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Granted: 1996-11-12
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Expires: 2009-12-08
Abstract
No abstract record available.
Inventors
- 👤 Aysegul Ozkahyaoglu
- 👤 Marty M Zoerner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:21
CPC Classifications
G; G01; G01P; G01P13/00; G01P13/0006; B; B01; B01D; B01D35/00; B01D35/14; B01D35/143; G01P1/00; G01P1/07; G01P1/08; G01P1/10; G01P1/103
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) | 1999-11-12 | 2000-05-13 | 2000-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-11-12 | 2004-05-13 | 2004-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-11-12 | 2008-05-13 | 2008-11-12 | $7700.00 | Window Closed / Lapsed |