US4866400B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic pole-zero adjustment circuit for an ionizing radiation spectroscopy system
Assignee: Leidos Security Detection and Automation Inc
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Filing: 1988-01-15
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Granted: 1999-08-31
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Expires: 2008-01-15
Abstract
No abstract record available.
Inventors
- 👤 Charles L Britton Jr
- 👤 Thomas H Becker
- 👤 Michael O Bedwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:45
CPC Classifications
G; G01; G01R; G01R17/00; G01R17/02; G01R17/06
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) | 2002-08-30 | 2003-03-01 | 2003-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-08-30 | 2007-03-01 | 2007-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-08-30 | 2011-03-01 | 2011-08-31 | $7700.00 | Window Closed / Lapsed |