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Official data from INPI

DISPOSITIVO PARA AVALIAR A OPERAÇÃO DE PURGADORES DE VAPOR

Em AnáliseInvention Patent

Application data

Number

PI8701793

Type

Invention Patent

Filing

04/14/1987

Publication

01/26/1988

Progress at the INPI

  1. Filing04/14/87
  2. Publication01/26/88
  3. Examination04/05/88
  4. Allowance12/17/96
  5. Grant08/25/98
  6. Expired08/26/08

The letters patent expired on 08/26/2008: 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: 05/17/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

TLV Co., Ltd

JP

See this company's full portfolio

Inventors

M. Y. (pessoa física)

JP

T. Y. (pessoa física)

JP

Y. F. (pessoa física)

JP

Technical data

IPC Classification

Priority claims

JP

61-63804 · 04/25/1986

JP

61-87432 · 04/15/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

4.1.2

05/17/1988

RPI 917

Solicitação de exame técnico

#4.1

04/05/1988

RPI 911

Publicação do pedido de patente

#3.1

01/26/1988

RPI 901

Pedido de patente depositado

#2.1

07/28/1987

RPI 875

Carta-patente expirada

#21.1

Patente extinta em 25/08/2008

08/26/2008

RPI 1964

Concessão da patente

#16.1

08/25/1998

RPI 1444

100

12/17/1996

RPI 1359

120

04/16/1996

RPI 1324

Petição de recurso

#12.2

12/12/1995

RPI 1306

Indeferimento

#9.2

09/05/1995

RPI 1292

Conhecimento de parecer técnico

#7.1

07/20/1993

RPI 1181

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