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US 2,436,751 A · Inventors: HAMMELL KEMPER M et al.

USPTO PDF

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.

Why it's free to use

  • Granted February 24, 1948. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by February 24, 1965.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledFebruary 19, 1945
GrantedFebruary 24, 1948
Term endedFebruary 24, 1965
Application number—
Classification (CPC)F42B12/42
Length3 pages

Timeline

Timeline From USPTO dates

1946194819501952195419561958196019621964Application filedFeb 19, 1945Patent grantedFeb 24, 1948Term endedFeb 24, 1965

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