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Patent US5160925C1 successfully refreshed from Google Patents.
US5160925C1
Expired / Lapsed
US
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Short hop communication link for downhole mwd system
Assignee: Halliburton Co
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Filing: 1991-04-17
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Granted: 2001-03-06
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Expires: 2011-04-17
Abstract
No abstract record available.
Inventors
- 👤 Patrick E Dailey
- 👤 Charles D Barron
- 👤 Louis H Rorden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:47
CPC Classifications
E; E21; E21B; E21B47/00; E21B47/12; E21B47/14; E21B47/18; E21B47/01; E21B47/013; E21B47/017; E21B47/13
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) | 2004-03-05 | 2004-09-04 | 2005-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-03-05 | 2008-09-04 | 2009-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-03-05 | 2012-09-04 | 2013-03-06 | $7700.00 | Window Closed / Lapsed |