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US3658663A Expired / Lapsed US ⏱️ 0.0 years remaining

Method for effecting partial metal plating

Assignee: Japan Electro Plating Co
•
Filing: 1971-01-25
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Granted: 1972-04-25
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Expires: 1991-01-25
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Abstract

Abstract By the use of an apparatus comprising a supporting and partitioning base having a plurality of spaced openings each having an inner peripheral end edge of a V-shaped cross section for tightly linearly contacting the circumference of the article to be plated when the latter is inserted in place in said opening, and by establishing electric conduction between the terminal of an electrode and the conductive portion in that region of the article located on the inner side of said supporting and partitioning base and not requiring plating via a conductive powder or particles filled on said inner side of the partitioning base, and by immersing that portion of the article protruding on the outer side of said base in the electrolyte, it is possible to accomplish partial metal plating of this article without any complicated steps required in the prior art and to perform mass production at greatly reduced cost.

Inventors

  • 👤 Hirotaka Fukanuma
  • 👤 Kenji Fujita
  • 👤 Kenji Kashiura

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 18:30
CPC Classifications
C; C25; C25D; C25D5/00; C25D5/02

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US148409A Cited
US258214A Cited
US1970459A Cited
GB423442A Cited
US2115403A Cited
US3007855A Cited
US3043767A Cited
US3271280A Cited
US3223599A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1975-04-25 1975-10-25 1976-04-25 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-04-25 1979-10-25 1980-04-25 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-04-25 1983-10-25 1984-04-25 $7700.00 Window Closed / Lapsed

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