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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8106819

Type

Invention Patent

Filing

10/22/1981

Publication

07/06/1982

Progress at the INPI

  1. Filing10/22/81
  2. Publication07/06/82
  3. Examination11/23/82
  4. Allowance10/27/87
  5. Grant05/31/88
  6. Terminated03/19/96

The patent was granted on 05/31/1988 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: 05/31/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Hooker Chemicals & Plastics Corporation

US

Inventors

M. J. (pessoa física)

R. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

05/31/1988

RPI 919

Notificação para pagamento de retribuição

#13.1

03/01/1988

RPI 906

Deferimento

#9.1

10/27/1987

RPI 888

Exigência - art. 36 da LPI

#6.1

02/17/1987

RPI 852

Conhecimento de parecer técnico

#7.1

04/24/1984

RPI 705

Solicitação de exame técnico

#4.1

11/23/1982

RPI 631

Publicação do pedido de patente

#3.1

07/06/1982

RPI 611

Pedido de patente depositado

#2.1

12/08/1981

RPI 581

Anuidade - prazo legal encerrado

#18.2

03/19/1996

RPI 1320

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