Patent US4859016B1 successfully refreshed from Google Patents.
US4859016B1
Expired / Lapsed
US
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Fiber optic amplifier
Assignee: Leland Stanford Junior University
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Filing: 1987-12-22
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Granted: 2000-11-07
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Expires: 2007-12-22
Abstract
No abstract record available.
Inventors
- 👤 Herbert J Shaw
- 👤 Michel J F Digonnet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:04
CPC Classifications
H; H04; H04B; H04B10/00; H04B10/29; H04B10/291; H04B10/2912; H01; H01S; H01S3/00; H01S3/09; H01S3/091; H01S3/0915; H01S3/0933; H01S3/094; H01S3/094003; H01S3/05; H01S3/06; H01S3/063; H01S3/067; H01S3/06754; H01S3/06787; H01S3/094011
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) | 2003-11-07 | 2004-05-08 | 2004-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-11-07 | 2008-05-08 | 2008-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-11-07 | 2012-05-08 | 2012-11-07 | $7700.00 | Window Closed / Lapsed |