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US4803445B1 Expired / Lapsed US ⏱️ 0.0 years remaining

Variable frequency oscillator

Assignee: SILICON SYSTEMS, ICN. 14351 MYFORD RD., TUSTIN, CA 92680, A CORP OF CA
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Filing: 1987-04-22
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Granted: 1993-09-07
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Expires: 2007-04-22
📄 Original PDF 🌐 Google Patents

Abstract

No abstract record available.

Inventors

  • 👤 G. Yamasaki Richard

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 19:48
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/26; H03K3/28; H03K3/281; H03K3/282; H03K3/2821; H03K7/00; H03K7/06

Claims Analysis

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References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1996-09-06 1997-03-08 1997-09-07 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2000-09-06 2001-03-08 2001-09-07 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2004-09-06 2005-03-08 2005-09-07 $7700.00 Window Closed / Lapsed

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