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Official data from INPI

PROCESSO DE PREPARAÇÃO DE COMPOSIÇÕES DE CATALISADORES

Em AnáliseInvention Patent

Application data

Number

PI8204542

Type

Invention Patent

Filing

08/03/1982

Publication

07/26/1983

Progress at the INPI

  1. Filing08/03/82
  2. Publication07/26/83
  3. Examination08/27/85
  4. Allowance11/08/88
  5. Grant08/29/89
  6. Terminated12/20/94

The patent was granted on 08/29/1989 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: 09/26/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

W.R. Grace & CO. - CONN.

US

See this company's full portfolio

Inventors

A. P. (pessoa física)

US

M. S. (pessoa física)

US

W. W. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

291.178 · 08/10/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

14.4

09/26/1989

RPI 988

Concessão da patente

#16.1

08/29/1989

RPI 984

Notificação para pagamento de retribuição

#13.1

02/28/1989

RPI 958

Deferimento

#9.1

11/08/1988

RPI 942

Exigência - art. 36 da LPI

#6.1

05/24/1988

RPI 918

Exigência - art. 36 da LPI

#6.1

12/23/1986

RPI 844

Solicitação de exame técnico

#4.1

08/27/1985

RPI 775

Publicação do pedido de patente

#3.1

07/26/1983

RPI 666

Pedido de patente depositado

#2.1

09/14/1982

RPI 621

Anuidade - prazo legal encerrado

#18.2

12/20/1994

RPI 1255

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