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Progressive burning smokeless powder

US 2,201,640 A · Inventors: WELDIN LEWIS C

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Overview

This document has no drawings.

No Claude kit for weapons

Claude doesn't help design weapons, ammunition or explosives, so this page has no Reinvent kit. To develop this one, work with a federally licensed manufacturer (many of these items are regulated) and a registered patent attorney or agent, listed on the USPTO roster.

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 21, 1940. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by May 21, 1957.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledDecember 14, 1937
GrantedMay 21, 1940
Term endedMay 21, 1957
Application number—
Classification (CPC)C06B23/007 +1 more
Length3 pages

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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