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Official data from INPI

VÁLVULA PARA PANELA DE PRESSÃO.

Em AnáliseUtility Model

Application data

Number

MU6500143

Type

Utility Model

Filing

02/07/1985

Publication

08/27/1985

Progress at the INPI

  1. Filing02/07/85
  2. Publication08/27/85
  3. Examination05/06/86
  4. Allowance05/24/88
  5. Grant10/25/88
  6. Expired05/09/95

The letters patent expired on 05/09/1995: 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: 11/21/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Arcanjo Nigro & Filhos Ltda

Inventors

P. N. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

20.4

11/21/1989

RPI 996

20.7

11/21/1989

RPI 996

Concessão da patente

#16.1

10/25/1988

RPI 940

Deferimento

#9.1

05/24/1988

RPI 918

Republicação - classificação IPC

#15.11

12/22/1987

RPI 896

Exigência - art. 36 da LPI

#6.1

12/15/1987

RPI 895

Solicitação de exame técnico

#4.1

05/06/1986

RPI 811

Publicação antecipada

#3.2

08/27/1985

RPI 775

Pedido de patente depositado

#2.1

04/30/1985

RPI 758

Carta-patente expirada

#21.1

05/09/1995

RPI 1275

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