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Official data from INPI

VALVULA DE DRENAGEM REGULADA PARA O TRATAMENTO DA HIDROCEFALIA

Em AnáliseUtility Model

Application data

Number

MU6401954

Type

Utility Model

Filing

11/26/1984

Publication

06/24/1986

Progress at the INPI

  1. Filing11/26/84
  2. Publication06/24/86
  3. Examination10/14/86
  4. Refused06/28/88
  5. Grant
  6. In force

The application was refused on 06/28/1988 and the appeal did not change the decision. The invention was never patented and the technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 06/28/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

HELIO RUBENS MACHADO [BR]

Inventors

M. [. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

111

06/28/1988

RPI 923

Petição de recurso

#12.2

01/19/1988

RPI 900

Indeferimento

#9.2

09/01/1987

RPI 880

Solicitação de exame técnico

#4.1

10/14/1986

RPI 834

Publicação do pedido de patente

#3.1

06/24/1986

RPI 818

Pedido de patente depositado

#2.1

03/19/1985

RPI 752

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