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US 1,898,073 A · Inventors: WOODBERRY DAVID L

USPTO PDF

Overview

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

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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.

Why it's free to use

  • Granted February 21, 1933. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by February 21, 1950.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledSeptember 20, 1926
GrantedFebruary 21, 1933
Term endedFebruary 21, 1950
Application number—
Classification (CPC)F42C15/295 +2 more
Length4 pages

Timeline

Timeline From USPTO dates

19271930193319361939194219451948Application filedSep 20, 1926Patent grantedFeb 21, 1933Term endedFeb 21, 1950

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