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Official data from INPI

PROCESSO DE ABSORÇÃO PARA REMOÇÃO DE SULFETOS DE UMA CORRENTE GASOSA E DE REGENERAÇÃO DO ADSORVENTE CARREGADO; E, ABSORVENTE SÓLIDO PARA USO NO PROCESSO

Arquivada/ExtintaInvention PatentPCT · DK1990000115

Application data

Number

PI9006782

Type

Invention Patent

Filing

05/03/1990

Publication

08/06/1991

PCT

DK1990000115

Progress at the INPI

  1. Filing05/03/90
  2. Publication08/06/91
  3. Examination02/11/92
  4. Allowance08/03/99
  5. Grant02/22/00
  6. Expired01/15/13

The letters patent expired on 01/15/2013: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 01/15/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Haldor Topsoe A/S

DK

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Inventors

P. N. (pessoa física)

DK

Technical data

IPC Classification

Priority claims

DK

2608/89 · 05/29/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 03/05/2010

01/15/2013

RPI 2193

Concessão da patente

#16.1

02/22/2000

RPI 1520

Deferimento

#9.1

08/03/1999

RPI 1491

Exigência - art. 36 da LPI

#6.1

01/27/1998

RPI 1414

Solicitação de exame técnico

#4.1

02/11/1992

RPI 1106

Notificação de entrada na fase nacional - PCT

#1.3

08/06/1991

RPI 1079

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