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Ammonium nitrate slurry blasting composition containing sulfur-sodium nitrate sensitizer

US 3,249,477 A · Inventors: CLAY ROBERT B et al.

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Overview

The published document from the USPTO: abstract, claims, description and drawings. Open it full size

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Read the whole patent

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.

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Why it's free to use

  • Granted May 3, 1966. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by May 3, 1983.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledMay 1, 1964
GrantedMay 3, 1966
Term endedMay 3, 1983
Application number—
Classification (CPC)C06B47/14
Length3 pages

Timeline

Timeline From USPTO dates

1965196719691971197319751977197919811983Application filedMay 1, 1964Patent grantedMay 3, 1966Term endedMay 3, 1983

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

Cross-check elsewhere

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

Everything on this page comes from the USPTO record linked above.