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US3745034A Expired / Lapsed US ⏱️ 0.0 years remaining

Electrostatic coating of metal powder on metal strip

Assignee: National Steel Corp
•
Filing: 1970-08-14
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Granted: 1973-07-10
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Expires: 1990-08-14
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Abstract

Abstract METHOD AND APPARATUS FOR APPLYING A METALLIC COATING ON METAL STRIP, PARTICULARLY STEEL STRIP, BY ELECTROSTATICALLY DEPOSITING ON THE STRIP A UNIFORM LAYER OF METAL POWDER AND THEREAFTER SUBJECTING THE STRIP AND THE LAYER OF METAL POWDER TO HEAT TREATMENT AND THEN COMPACTION TO EFFECT COHESION OF THE PARTICLES OF METAL POWDER AND ADHESION OF THE METAL POWDER PARTICLES TO THE STRIP.

Inventors

  • 👤 E Smith
  • 👤 R Reif

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 14:17
CPC Classifications
B; B05; B05B; B05B5/00; B05B5/08; B05B5/14; B05B16/00; B05B16/90; B05B16/95

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) 1976-07-09 1977-01-08 1977-07-10 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-07-09 1981-01-08 1981-07-10 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-07-09 1985-01-08 1985-07-10 $7700.00 Window Closed / Lapsed

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