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US2885553A Expired / Lapsed US ⏱️ 0.0 years remaining

Phase stable divider

Assignee: Individual
•
Filing: 1956-12-12
•
Granted: 1959-05-05
•
Expires: 1976-12-12
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Abstract

No abstract record available.

Inventors

  • 👤 Paul W Albro
  • 👤 Victor F Cartwright

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-22 22:35
CPC Classifications
H; H03; H03K; H03K5/00; H03K5/00006; H04; H04N; H04N5/00; H04N5/04; H04N5/06

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US2331986A Cited
US2602160A Cited
US2457974A Cited
US2638273A Cited
US2613319A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1962-05-04 1962-11-03 1963-05-05 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1966-05-04 1966-11-03 1967-05-05 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1970-05-04 1970-11-03 1971-05-05 $7700.00 Window Closed / Lapsed

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