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Official data from INPI

PROCESSO PARA PURIFICACAO DE UMA CORRENTE GASOSA

ConcedidaInvention Patent

Application data

Number

PI8107801

Type

Invention Patent

Filing

12/18/1980

Publication

09/08/1982

Progress at the INPI

  1. Filing12/18/80
  2. Publication09/08/82
  3. Examination09/18/84
  4. Allowance07/30/85
  5. Grant02/04/86
  6. Terminated06/27/95

The patent was granted on 02/04/1986 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: 02/04/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

LINDE AG [DE]

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Inventors

B. A. (pessoa física)

H. M. (pessoa física)

Z. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

02/04/1986

RPI 798

Notificação para pagamento de retribuição

#13.1

11/26/1985

RPI 788

Deferimento

#9.1

07/30/1985

RPI 771

Exigência - art. 36 da LPI

#6.1

02/26/1985

RPI 749

Solicitação de exame técnico

#4.1

09/18/1984

RPI 726

Publicação do pedido de patente

#3.1

09/08/1982

RPI 620

Pedido de patente depositado

#2.1

01/12/1982

RPI 586

Anuidade - prazo legal encerrado

#18.2

06/27/1995

RPI 1282

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