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Apparatus for removing plaster from plate glass surfacing tables

US 2,248,232 A · Inventors: HAWORTH JAMES G

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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 July 8, 1941. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by July 8, 1958.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledJuly 31, 1939
GrantedJuly 8, 1941
Term endedJuly 8, 1958
Application number—
Classification (CPC)B24D7/06
Length6 pages

Timeline

Timeline From USPTO dates

1940194219441946194819501952195419561958Application filedJuly 31, 1939Patent grantedJuly 8, 1941Term endedJuly 8, 1958

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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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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