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Official data from INPI

MAQUINA DE RETIRAR MEMBRANA

Em AnáliseInvention Patent

Application data

Number

PI8104308

Type

Invention Patent

Filing

07/07/1981

Publication

02/16/1983

Progress at the INPI

  1. Filing07/07/81
  2. Publication02/16/83
  3. Examination07/05/83
  4. Refused11/05/85
  5. Grant
  6. In force

The application was refused on 11/05/1985 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: 11/05/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

TOWNSEND ENGINEERING CO [US]

Inventors

T. T. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

111

11/05/1985

RPI 785

Petição de recurso

#12.2

03/05/1985

RPI 750

Indeferimento

#9.2

12/04/1984

RPI 737

Solicitação de exame técnico

#4.1

07/05/1983

RPI 663

Publicação do pedido de patente

#3.1

02/16/1983

RPI 643

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