Patent US4909244B1 successfully refreshed from Google Patents.
US4909244B1
Expired / Lapsed
US
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Hydrogel wound dressing
Assignee: Kendall Co
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Filing: 1986-11-26
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Granted: 1994-07-05
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Expires: 2006-11-26
Abstract
No abstract record available.
Inventors
- 👤 Alan J Quarfoot
- 👤 Patrick H Hyla
- 👤 Donald Patience
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:12
CPC Classifications
A; A61; A61L; A61L15/00; A61L15/16; A61L15/42; A61L15/58; A61F; A61F13/00; A61F13/02; A61F13/023; A61L15/60; A61F2013/00361; A61F2013/00727; A61F2013/00748; A61F2013/00757; A61F2013/00761; A61F2013/00795; A61F2013/00829; A61F2013/00855; A61F2013/00868; A61F2013/00872; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249987; Y10T428/249991; Y10T428/31504; Y10T428/31551; Y10T428/31558
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) | 1997-07-04 | 1998-01-03 | 1998-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-07-04 | 2002-01-03 | 2002-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-07-04 | 2006-01-03 | 2006-07-05 | $7700.00 | Window Closed / Lapsed |