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Stannous solutions containing hydroxy carboxylic acid ions their preparation and their use in plating tin on conductive surfaces particularly on aluminum

US 3,616,291 A · Inventors: WILSON HAROLD P

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Listed from its USPTO record in Patent Yard's full-term archive. Its claims, description and drawings are in the USPTO PDF and on Google Patents, and the Claude kit works from them.

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Why it's free to use

  • Granted October 26, 1971. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by October 26, 1988.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledSeptember 16, 1969
GrantedOctober 26, 1971
Term endedOctober 26, 1988
Application number—
Classification (CPC)C25D5/44 +2 more
Length9 pages

Timeline

Timeline From USPTO dates

1970197219741976197819801982198419861988Application filedSep 16, 1969Patent grantedOct 26, 1971Term endedOct 26, 1988

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Official USPTO records

Full published documentText and every drawing sheet as a PDF.USPTOFile historyStatus, office actions, notices, fee records and petitions.USPTO Patent CenterPatent Public Search recordSearchable full text and bibliographic data.USPTO

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