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US3674550A Expired / Lapsed US ⏱️ 0.0 years remaining

Method of electroless deposition of a substrate and sensitizing solution therefor

Assignee: ALLIED RES PROD Inc
•
Filing: 1970-03-04
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Granted: 1972-07-04
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Expires: 1990-03-04
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Abstract

Abstract PRIOR TO ELECTROLESSLY DEPOSITING A METAL ON A SUBSTRATE, THE SUBSTRATE IS TREATED WITH AN AQUIOUS SOLUTION OF A COMPLEX OF A METAL OF THE PLATINUM FAMILY AND THEREAFTER WITH AN AQUEOUS SOLUTION OF A REDUCING AGENT FOR THE PLATINUM FAMILY METAL. THE COMPLEX CAN BE A NITRITO SALT OF THE PLATINUM METAL OR A SALT OF THE METAL WITH A KETO-CARBOXYLIC ACID OR DIGLYCOLLIC ACID.

Inventors

  • 👤 Glenn O Mallory

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 04:50
CPC Classifications
C; C23; C23C; C23C18/00; C23C18/16; C23C18/18; C23C18/20; C23C18/28

Claims Analysis

Total Claims: 0
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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) 1975-07-04 1976-01-03 1976-07-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-07-04 1980-01-03 1980-07-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-07-04 1984-01-03 1984-07-04 $7700.00 Window Closed / Lapsed

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