Patent US632526A successfully refreshed from Google Patents.
US5224775C2
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Method and apparatus for modulated differential analysis
Assignee: TA Instruments Inc
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Filing: 1992-03-02
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Granted: 2002-04-23
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Expires: 2012-03-02
Abstract
No abstract record available.
Inventors
- 👤 Michael Reading
- 👤 Brian K Hahn
- 👤 Benjamin S Crowe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:49
CPC Classifications
G; G01; G01N; G01N25/00; G01N25/18; G01N25/20; G01N25/48; G01N25/4806; G01N25/4826; G01N25/4833; G01N25/4846; G01N25/4866
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) | 2005-04-22 | 2005-10-22 | 2006-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-04-22 | 2009-10-22 | 2010-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-04-22 | 2013-10-22 | 2014-04-23 | $7700.00 | Window Closed / Lapsed |