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Patent US2459018A successfully refreshed from Google Patents.
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US2459018A Expired / Lapsed US ⏱️ 0.0 years remaining

Method of coating electrical devices

Assignee: AT&T Inc
•
Filing: 1945-03-22
•
Granted: 1949-01-11
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Expires: 1965-03-22
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Abstract

No abstract record available.

Inventors

  • 👤 Monte Robert W De
  • 👤 Atwell B Haines

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 20:06
CPC Classifications
H; H01; H01F; H01F41/00; H01F41/02; H01F41/04; H01F41/12; H01F41/127; H01F27/00; H01F27/02; H01F27/022; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2915; Y10T428/2922; Y10T428/2925

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US1323284A Cited
US1404792A Cited
US1939301A Cited
US1848344A Cited
US2061388A Cited
US2085995A Cited
US2256160A Cited
US2198939A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1952-01-11 1952-07-12 1953-01-11 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1956-01-11 1956-07-12 1957-01-11 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1960-01-11 1960-07-12 1961-01-11 $7700.00 Window Closed / Lapsed

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