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Official data from INPI

PROCESSO PARA REMOCAO DE GASES ACIDOS CONTENDO DIOXIDO DE CARBONO DE MISTURAS GASOSAS E SOLUCAO AQUOSA DE AMINA

ConcedidaInvention Patent

Application data

Number

PI7800853

Type

Invention Patent

Filing

02/14/1977

Publication

-

Progress at the INPI

  1. Filing02/14/77
  2. Publication
  3. Examination
  4. Allowance05/17/88
  5. Grant11/29/88
  6. Terminated01/28/92

The patent was granted on 11/29/1988 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 11/29/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

EXXON RESEARCH ENGINEERING CO

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Inventors

S. G. (pessoa física)

S. D. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/29/1988

RPI 945

Republicação - classificação IPC

#15.11

09/27/1988

RPI 936

Notificação para pagamento de retribuição

#13.1

09/06/1988

RPI 933

Deferimento

#9.1

05/17/1988

RPI 917

Exigência - art. 36 da LPI

#6.1

11/24/1987

RPI 892

Exigência - art. 36 da LPI

#6.1

10/21/1986

RPI 835

Exigência - art. 36 da LPI

#6.1

11/30/1982

RPI 632

6.2

01/19/1982

RPI 587

Anuidade - prazo legal encerrado

#18.2

01/28/1992

RPI 1104

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