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Official data from INPI

PROCESSO PARA REMOCAO DE GASES ACIDOS DE UMA MISTURA NORMALMENTE GASOSA,E COMPOSICAO ABSORVENTE LIQUIDA DE AMINA-SOLVENTE USADA NO MESMO

ConcedidaInvention Patent
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Application data

Number

PI7800854

Type

Invention Patent

Filing

02/14/1977

Publication

-
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Progress at the INPI

  1. Filing02/14/77
  2. Publication
  3. Examination
  4. Allowance09/01/87
  5. Grant02/23/88
  6. Terminated01/28/92

The patent was granted on 02/23/1988 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 02/23/1988. 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

C10K 1/16

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

02/23/1988

RPI 905

Notificação para pagamento de retribuição

#13.1

12/29/1987

RPI 897

Deferimento

#9.1

09/01/1987

RPI 880

Exigência - art. 36 da LPI

#6.1

10/14/1986

RPI 834

Exigência - art. 36 da LPI

#6.1

02/05/1985

RPI 746

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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