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Official data from INPI

SISTEMA DE DUTO PARA ESCOAMENTO DE ENTULHO POR GRAVIDADE

IndeferidaInvention Patent

Application data

Number

PI8402068

Type

Invention Patent

Filing

05/03/1984

Publication

12/10/1985

Progress at the INPI

Under appeal
  1. Filing05/03/84
  2. Publication12/10/85
  3. Examination04/29/86
  4. Refused01/03/89
  5. Grant
  6. In force

The application was refused by the INPI on 01/03/1989. The invention was never patented.

Talk to a specialist

Latest action published by the INPI: 01/03/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

M. G. (pessoa física)

Inventors

G. [. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Indeferimento

#9.2

01/03/1989

RPI 950

Conhecimento de parecer técnico

#7.1

05/17/1988

RPI 917

Solicitação de exame técnico

#4.1

04/29/1986

RPI 810

Publicação do pedido de patente

#3.1

12/10/1985

RPI 790

Pedido de patente depositado

#2.1

07/10/1984

RPI 716

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