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Smokeless powder grains and method of making same

US 2,780,997 A · Inventors: BAKER WILLIAM O

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Overview

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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 February 12, 1957. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by February 12, 1974.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledMay 22, 1953
GrantedFebruary 12, 1957
Term endedFebruary 12, 1974
Application number—
Classification (CPC)C06B45/00 +1 more
Length2 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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