Patent Yard Sign in
Expired, full termArchiveSolo inventor

Means for converting a manual bench sealer to an automatic sealer

US 3,428,512 A · Inventors: COOPER KERMIT H

USPTO PDF

Overview

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

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, and the Claude kit works from them.

Why it's free to use

  • Granted February 18, 1969. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by February 18, 1986.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledDecember 16, 1965
GrantedFebruary 18, 1969
Term endedFebruary 18, 1986
Application number—
Classification (CPC)B65B57/00 +1 more
Length4 pages

Timeline

Timeline From USPTO dates

1966196919721975197819811984Application filedDec 16, 1965Patent grantedFeb 18, 1969Term endedFeb 18, 1986

Sources & verification