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Official data from INPI

DISPOSITIVO MEDIDOR DE VAZAMENTO DE VAPOR.

Em AnáliseInvention Patent

Application data

Number

PI8701158

Type

Invention Patent

Filing

03/13/1987

Publication

01/12/1988

Progress at the INPI

  1. Filing03/13/87
  2. Publication01/12/88
  3. Examination04/05/88
  4. Allowance04/27/93
  5. Grant09/28/93
  6. Expired07/29/08

The letters patent expired on 07/29/2008: 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

Technical data

IPC Classification

Priority claims

JP

61-57499 · 03/14/1986

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

01/12/1988

RPI 899

Pedido de patente depositado

#2.1

06/23/1987

RPI 870

Carta-patente expirada

#21.1

Patente extinta em 13/03/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

09/28/1993

RPI 1191

Notificação para pagamento de retribuição

#13.1

08/24/1993

RPI 1186

Deferimento

#9.1

04/27/1993

RPI 1169

Republicação - classificação IPC

#15.11

12/08/1992

RPI 1149

Exigência - art. 36 da LPI

#6.1

10/27/1992

RPI 1143

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