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Impact rolling or tamping machines for the compaction of loose materials, such as road surfaces

US 2,909,106 A · Inventors: RALPH BERRANGE AUBREY

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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 20, 1959. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by October 20, 1976.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledAugust 17, 1953
GrantedOctober 20, 1959
Term endedOctober 20, 1976
Application number—
Classification (CPC)E02D3/026
Length8 pages

Timeline

Timeline From USPTO dates

19541957196019631966196919721975Application filedAug 17, 1953Patent grantedOct 20, 1959Term endedOct 20, 1976

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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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