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Circuit for generating a negative voltage supply signal, and associated power supply device and portable electronic apparatus

US 2010/0007407 A1 · Assignee: SONY ERICSSON MOBILE COMMUNICATIONS AB · Inventors: TRAJKOVSKI; Kiril et al.

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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

  • Published January 14, 2010, and no patent has issued anywhere in its US family since.
  • Nothing has been filed in its family for more than seven years, so it is very unlikely to still be pending.
  • This status is inferred from USPTO records. Confirm it on Patent Center before relying on it.
FiledJuly 8, 2008
PublishedJanuary 14, 2010
StatusAbandoned (inferred)
Application number12/169128
Classification (CPC)H02M3/07
Length8 pages

Timeline

Timeline From USPTO dates

20092010Application filedJuly 8, 2008Application publishedJan 14, 2010

Sources & verification

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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