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Thermal insulating structure and method of manufacturing same

US 1,842,875 A · Inventors: LINDSAY HARVEY B

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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 January 26, 1932. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by January 26, 1949.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledDecember 14, 1927
GrantedJanuary 26, 1932
Term endedJanuary 26, 1949
Application number—
Classification (CPC)B28B5/026 +2 more
Length7 pages

Timeline

Timeline From USPTO dates

19281931193419371940194319461949Application filedDec 14, 1927Patent grantedJan 26, 1932Term endedJan 26, 1949

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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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Google PatentsFull text, worldwide family, citing patents and legal events.patents.google.comJustia PatentsFull text, claims and classification.patents.justia.comFreePatentsOnlineFull text and PDF.freepatentsonline.comEspacenetForeign family and legal status.European Patent Office

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