Nova Patents
PT72068A

Process for improving the formation of hydrous alumina dispersed within a weak base anion exchange resin

Abstract

This record has no abstract on file.

Term

Term ended

Projected expiry passed 17 November 1995, 30.9 years ago.

  1. Priority
  2. Filed
  3. Published
  4. Projected expiry
  5. Today

32 members in 15 offices

This recordMember, by publication datePriority claim5 more offices are in the list below

Priority claims1

Priority claims
DocumentOfficeKindDate
9569179United States of AmericaA

Members32

Family members, oldest first
DocumentOfficeKind
US4221767AUnited States of AmericaA
PT72068AThis recordPortugalA
IL61387A0IsraelA0
IL61387D0IsraelD0
FI803618LFinlandL
NO803468LNorwayL
BR8007372ABrazilA
EP0029253A1European Patent Office (EPO)A1
AU6414080AAustraliaA
JPS5695343AJapanA
ES496982A0SpainA0
ES8204305A1SpainA1
AR226084A1ArgentinaA1
US4333846AUnited States of AmericaA
PT72068BPortugalB
US4347327AUnited States of AmericaA
US4348297AUnited States of AmericaA
CA1144699ACanadaA
NZ195581ANew ZealandA
US4381349AUnited States of AmericaA
US4392980AUnited States of AmericaA
EP0029253B1European Patent Office (EPO)B1
IL61387AIsraelA
DE3066764D1GermanyD1
US4446201AUnited States of AmericaA
FI67038BFinlandB
NO150990BNorwayB
FI67038CFinlandC
NO150990CNorwayC
AU543504B2AustraliaB2
MX155330AMexicoA
JPH0116533B2JapanB2