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Apparatus for producing airlaid fibrous webs

US 2,581,069 A · Inventors: BERTOLET JR ELMER C

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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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  • Granted January 1, 1952. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by January 1, 1969.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledSeptember 24, 1945
GrantedJanuary 1, 1952
Term endedJanuary 1, 1969
Application number—
Classification (CPC)D04H1/72
Length12 pages

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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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