Method for electrolytically passivating a surface of silver, silver alloy, gold, or gold alloy

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11851780
APP PUB NO 20220389603A1
SERIAL NO

17888160

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

The present invention relates to an aqueous passivation solution having a pH in the range from 5.4 to 7.2, the solution including

    trivalent chromium ions, andformate anions and/or oxalate anions as complexing agents for said trivalent chromium ions, in which the trivalent chromium ions with respect to all formate anions together with all oxalate anions form a molar ratio in the range from 1:15 to 1:400.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
ATOTECH DEUTSCHLAND GMBH & CO KG10553 BERLIN

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Foong, Tse-Cheen Berlin, DE 2 0
Kurtz, Olaf Berlin, DE 15 99
Rüther, Robert Berlin, DE 8 10
Setyadi-Lie, Joko Berlin, DE 2 0

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
3.5 Year Payment $1600.00 $800.00 $400.00 Jun 26, 2027
7.5 Year Payment $3600.00 $1800.00 $900.00 Jun 26, 2031
11.5 Year Payment $7400.00 $3700.00 $1850.00 Jun 26, 2035
Fee Large entity fee small entity fee micro entity fee
Surcharge - 3.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00