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Official data from INPI

TUBO DE RESINA SINTÉTICA COM FLANGE E SEU PROCESSO DE PRODUÇÃO

Em AnáliseInvention Patent

Application data

Number

PI8604850

Type

Invention Patent

Filing

10/06/1986

Publication

03/24/1987

Progress at the INPI

  1. Filing10/06/86
  2. Publication03/24/87
  3. Examination05/26/87
  4. Allowance03/01/90
  5. Grant04/27/93
  6. Expired07/22/08

The letters patent expired on 07/22/2008: 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: 11/10/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Shiro Kanao, japonês

JP

Inventors

S. K. (pessoa física)

JP

Technical data

IPC Classification

Priority claims

JP

5366 · 01/14/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de certificado de adição de invenção

#5.1

11/10/1987

RPI 890

Solicitação de exame técnico

#4.1

05/26/1987

RPI 866

Publicação antecipada

#3.2

03/24/1987

RPI 857

Pedido de patente depositado

#2.1

03/10/1987

RPI 855

Carta-patente expirada

#21.1

Patente extinta em 06/10/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

04/27/1993

RPI 1169

110

02/02/1993

RPI 1157

120

03/05/1991

RPI 1057

Recurso

#12.1

06/19/1990

RPI 1023

Deferimento

#9.1

03/01/1990

RPI 1007

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