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US4572206B1
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US4572206B1 - - Google Patents
Assignee: Purdue Research Foundation
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Filing: 1982-04-21
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Granted: 1991-01-01
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Expires: 2002-04-21
Abstract
No abstract record available.
Inventors
- 👤 A Geddes Leslie
- 👤 S Grubbs David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:10
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/145; A61B5/14542; A61B5/02; A61B5/026; A61B5/0275; A61B5/1468; A61B5/1473; A61B5/68; A61B5/6846; A61B5/6847; A61B5/6852
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) | 1993-12-31 | 1994-07-02 | 1995-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-12-31 | 1998-07-02 | 1999-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-12-31 | 2002-07-02 | 2003-01-01 | $7700.00 | Window Closed / Lapsed |