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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8107254

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. Allowance03/31/87
  5. Grant09/29/87
  6. Terminated09/20/94

The patent was granted on 09/29/1987 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: 09/29/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Hooker Chemicals & Plastics Corporation

US

Inventors

T. W. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/29/1987

RPI 884

Deferimento

#9.1

03/31/1987

RPI 858

Republicação - classificação IPC

#15.11

01/08/1985

RPI 742

Exigência - art. 36 da LPI

#6.1

06/19/1984

RPI 713

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

09/20/1994

RPI 1242

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