Patent US5148802B1 successfully refreshed from Google Patents.
US5148802B1
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Method and apparatus for maintaining airway patency to treat sleep apnea and other disorders
Assignee: Respironics Inc
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Filing: 1989-09-22
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Granted: 1997-08-12
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Expires: 2009-09-22
Abstract
No abstract record available.
Inventors
- 👤 Mark H Sanders
- 👤 Ronald J Zdrojkowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:35
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/20; A61M16/201; A61M16/202; A61M16/203; A61M16/204; A61M16/0057; A61M16/0066; A61M16/0069; A61M16/021; A61M16/022; A61M16/024; A61M16/026; A61M16/0003; A61M2016/0015; A61M2016/0018; A61M2016/0021; A61M2016/003; A61M2016/0033; A61M2016/0036; A61M2016/0039; A61M2205/00; A61M2205/15; A61M2205/35; A61M2205/3546; A61M2205/3561
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) | 2000-08-11 | 2001-02-10 | 2001-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-08-11 | 2005-02-10 | 2005-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-08-11 | 2009-02-10 | 2009-08-12 | $7700.00 | Window Closed / Lapsed |