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Official data from INPI

APARELHO E PROCESSO PARA FORMACAO DE UMA RESINA TERMOPLASTICA

ConcedidaInvention Patent

Application data

Number

PI8206495

Type

Invention Patent

Filing

11/09/1981

Publication

09/27/1983

Progress at the INPI

  1. Filing11/09/81
  2. Publication09/27/83
  3. Examination12/06/83
  4. Allowance10/22/85
  5. Grant06/24/86
  6. Expired08/19/08

The letters patent expired on 08/19/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 06/24/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

MITSUI PETROCHEMICAL IND [JP]

PLACO CO LTD [JP]

Inventors

T. A. (pessoa física)

T. F. (pessoa física)

T. O. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/24/1986

RPI 818

Deferimento

#9.1

10/22/1985

RPI 783

8.1

08/13/1985

RPI 773

Republicação - classificação IPC

#15.11

07/30/1985

RPI 771

Exigência - art. 36 da LPI

#6.1

02/20/1985

RPI 748

Solicitação de exame técnico

#4.1

12/06/1983

RPI 685

Publicação do pedido de patente

#3.1

09/27/1983

RPI 675

Pedido de patente depositado

#2.1

01/04/1983

RPI 637

Carta-patente expirada

#21.1

Patente extinta em 09/11/97

08/19/2008

RPI 1963

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