Patent US4701267B1 successfully refreshed from Google Patents.
US4701267B1
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Method for removing leukocytes
Assignee: Asahi Kasei Medical Co Ltd
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Filing: 1985-03-14
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Granted: 1996-03-12
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Expires: 2005-03-14
Abstract
No abstract record available.
Inventors
- 👤 Hiroyuki Watanabe
- 👤 Hiroshi Rikumaru
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:18
CPC Classifications
B; B01; B01D; B01D39/00; B01D39/14; B01D39/16; B01D39/1607; B01D39/1623; A; A61; A61M; A61M2202/00; A61M2202/04; A61M2202/0413; A61M2202/0439
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) | 1999-03-12 | 1999-09-11 | 2000-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-03-12 | 2003-09-11 | 2004-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-03-12 | 2007-09-11 | 2008-03-12 | $7700.00 | Window Closed / Lapsed |