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Bomb sight

US 1,664,409 A · Inventors: GRANDISON GARDNER

USPTO PDF

Overview

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

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.

Why it's free to use

  • Granted April 3, 1928. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by April 3, 1945.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledMarch 29, 1924
GrantedApril 3, 1928
Term endedApril 3, 1945
Application number—
Classification (CPC)F41G3/24
Length6 pages

Timeline

Timeline From USPTO dates

1925192819311934193719401943Application filedMarch 29, 1924Patent grantedApril 3, 1928Term endedApril 3, 1945

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