Nova Patents
US2469331A

Electron tube

Abstract

This record has no abstract on file.

Term

Term ended

Expired 3 May 1966, 60.4 years ago.

  1. Priority and filed
  2. Granted
  3. Expired
  4. Today

Every citation, both ways

Citations
DocumentRelationOfficeCited during
US2877372ACited byUnited States of AmericaSearch report
US2725495ACited byUnited States of AmericaSearch report
US3215886ACited byUnited States of AmericaSearch report
US3826948ACited byUnited States of AmericaSearch report
DE1104620BCited byGermanySearch report
US3197666ACited byUnited States of AmericaSearch report
DE1122179BCited byGermanySearch report
US1583463ACitesUnited States of AmericaSearch report
US1708939ACitesUnited States of AmericaSearch report
US1927629ACitesUnited States of AmericaSearch report
US2011008ACitesUnited States of AmericaSearch report
US2112958ACitesUnited States of AmericaSearch report
US2238596ACitesUnited States of AmericaSearch report
US2246125ACitesUnited States of AmericaSearch report
US2289984ACitesUnited States of AmericaSearch report
US2310147ACitesUnited States of AmericaSearch report
US2310936ACitesUnited States of AmericaSearch report
US2317442ACitesUnited States of AmericaSearch report
US2345794ACitesUnited States of AmericaSearch report
US2402602ACitesUnited States of AmericaSearch report