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Official data from INPI

PROCESSO CÍCLICO PARA REMOÇÃO DE GASES ÁCIDOS DE UMA CORRENTE DE GÁS DE ALIMENTAÇÃO

Em AnáliseInvention Patent

Application data

Number

PI8302602

Type

Invention Patent

Filing

05/17/1983

Publication

12/26/1984

Progress at the INPI

  1. Filing05/17/83
  2. Publication12/26/84
  3. Examination01/06/87
  4. Allowance08/01/89
  5. Grant02/06/90
  6. Terminated08/29/95

The patent was granted on 02/06/1990 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: 11/28/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Exxon Research And Engineering Company

US

See this company's full portfolio

Inventors

R. O. (pessoa física)

US

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação para pagamento de retribuição

#13.1

11/28/1989

RPI 997

Deferimento

#9.1

08/01/1989

RPI 980

Exigência - art. 36 da LPI

#6.1

12/06/1988

RPI 946

Conhecimento de parecer técnico

#7.1

07/05/1988

RPI 924

Solicitação de exame técnico

#4.1

01/06/1987

RPI 846

Publicação do pedido de patente

#3.1

12/26/1984

RPI 740

Pedido de patente depositado

#2.1

07/05/1983

RPI 663

Anuidade - prazo legal encerrado

#18.2

08/29/1995

RPI 1291

Concessão da patente

#16.1

02/06/1990

RPI 1005

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