US4902986B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phased locked loop to provide precise frequency and phase tracking of two signals
Assignee: SEMICONDUCTOR TEST SOLUTIONS Inc
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Filing: 1989-01-30
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Granted: 1998-09-01
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Expires: 2009-01-30
Abstract
No abstract record available.
Inventors
- 👤 Gary J Lesmeister
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:05
CPC Classifications
H; H03; H03L; H03L7/00; H03L7/06; H03L7/08; H03L7/0805; G; G01; G01R; G01R31/00; G01R31/28; G01R31/2832; G01R31/2834; G01R31/317; G01R31/3181; G01R31/319; G01R31/31903; G01R31/31908; G01R31/3191; G01R31/31917; G01R31/31922; H03B; H03B27/00; H03L7/099; H03L7/0995; H03L7/0996
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) | 2001-08-31 | 2002-03-02 | 2002-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-08-31 | 2006-03-02 | 2006-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-08-31 | 2010-03-02 | 2010-09-01 | $7700.00 | Window Closed / Lapsed |