US5484472C1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Miniature air purifier
Assignee: Wein Products Inc
•
Filing: 1995-02-06
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Granted: 2001-02-20
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Expires: 2015-02-06
Abstract
No abstract record available.
Inventors
- 👤 Stanley Weinberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:07
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/44; B; B03; B03C; B03C3/00; B03C3/32; B03C3/34; B03C3/66; H; H01; H01T; H01T23/00; Y; Y10; Y10S; Y10S323/00; Y10S323/903
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) | 2004-02-20 | 2004-08-21 | 2005-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-02-20 | 2008-08-21 | 2009-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-02-20 | 2012-08-21 | 2013-02-20 | $7700.00 | Window Closed / Lapsed |