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Official data from INPI

VÁLVULAS APERFEIÇOADAS PARA PANELAS DE PRESSÃO.

Em AnáliseInvention Patent

Application data

Number

PI8104385

Type

Invention Patent

Filing

07/09/1981

Publication

02/16/1983

Progress at the INPI

  1. Filing07/09/81
  2. Publication02/16/83
  3. Examination04/26/83
  4. Allowance09/18/84
  5. Grant04/29/86
  6. Terminated05/24/88

The patent was granted on 04/29/1986 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 05/24/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

ALUMÍNIO EMPRESS S/A. INDÚSTRIA METALÚRGICA.

ALUMÍNIO TROFA LTDA.

Inventors

C. A. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

05/24/1988

RPI 918

Concessão da patente

#16.1

04/29/1986

RPI 810

15.15

12/03/1985

RPI 789

110

07/30/1985

RPI 771

Recurso

#12.1

01/08/1985

RPI 742

Deferimento

#9.1

09/18/1984

RPI 726

14.7

05/02/1984

RPI 706

Exigência - art. 36 da LPI

#6.1

02/21/1984

RPI 696

Solicitação de exame técnico

#4.1

04/26/1983

RPI 653

Publicação do pedido de patente

#3.1

02/16/1983

RPI 643

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