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Official data from INPI

PROCESSO NÃO-EVAPORATIVO PARA PRODUZIR SULFATO DE ALUMÍNIO

Em AnáliseInvention Patent

Application data

Number

PI8201759

Type

Invention Patent

Filing

03/29/1982

Publication

11/08/1983

Progress at the INPI

  1. Filing03/29/82
  2. Publication11/08/83
  3. Examination08/27/85
  4. Allowance12/29/87
  5. Grant08/30/88
  6. Terminated11/15/94

The patent was granted on 08/30/1988 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: 08/01/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

A. C. (pessoa física)

US

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Inventors

R. H. (pessoa física)

US

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

08/01/1989

RPI 980

Concessão da patente

#16.1

08/30/1988

RPI 932

Notificação para pagamento de retribuição

#13.1

05/10/1988

RPI 916

Deferimento

#9.1

12/29/1987

RPI 897

Exigência - art. 36 da LPI

#6.1

06/23/1987

RPI 870

Solicitação de exame técnico

#4.1

08/27/1985

RPI 775

Publicação do pedido de patente

#3.1

11/08/1983

RPI 681

Pedido de patente depositado

#2.1

05/18/1982

RPI 604

Anuidade - prazo legal encerrado

#18.2

11/15/1994

RPI 1250

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