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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8107252

Type

Invention Patent

Filing

11/09/1981

Publication

07/27/1982

Progress at the INPI

  1. Filing11/09/81
  2. Publication07/27/82
  3. Examination09/20/83
  4. Allowance08/04/87
  5. Grant02/23/88
  6. Terminated03/19/96

The patent was granted on 02/23/1988 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: 02/23/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Hooker Chemicals & Plastics Corporation

US

Inventors

B. D. (pessoa física)

R. Y. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

02/23/1988

RPI 905

Notificação para pagamento de retribuição

#13.1

11/24/1987

RPI 892

Deferimento

#9.1

08/04/1987

RPI 876

Conhecimento de parecer técnico

#7.1

06/25/1985

RPI 766

Exigência - art. 36 da LPI

#6.1

06/26/1984

RPI 714

Solicitação de exame técnico

#4.1

09/20/1983

RPI 674

Publicação do pedido de patente

#3.1

07/27/1982

RPI 614

Pedido de patente depositado

#2.1

12/22/1981

RPI 583

Anuidade - prazo legal encerrado

#18.2

03/19/1996

RPI 1320

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