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US 2,971,663 A · Inventors: TEVANDER CLARENCE A et al.

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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, and the Claude kit works from them.

Why it's free to use

  • Granted February 14, 1961. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by February 14, 1978.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledJuly 2, 1959
GrantedFebruary 14, 1961
Term endedFebruary 14, 1978
Application number—
Classification (CPC)B65D43/0222 +2 more
Length5 pages

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