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Official data from INPI

DISPOSITIVO DE IGINAÇÃO COM REACENDIMENTO E SISTEMA DE SEGURANÇA CONTRA FALTA DE CHAMA EM QUEIMADORES.

Em AnáliseInvention Patent

Application data

Number

PI8201490

Type

Invention Patent

Filing

03/18/1982

Publication

02/01/1983

Progress at the INPI

  1. Filing03/18/82
  2. Publication02/01/83
  3. Examination10/09/84
  4. Allowance07/30/85
  5. Grant03/25/86
  6. Expired07/01/08

The letters patent expired on 07/01/2008: 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: 04/05/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Comina S/A

RS, BR

Inventors

C. [. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

04/05/1988

RPI 911

Concessão da patente

#16.1

03/25/1986

RPI 805

Notificação para pagamento de retribuição

#13.1

11/26/1985

RPI 788

Deferimento

#9.1

07/30/1985

RPI 771

Solicitação de exame técnico

#4.1

10/09/1984

RPI 729

Publicação antecipada

#3.2

02/01/1983

RPI 641

Pedido de patente depositado

#2.1

05/04/1982

RPI 602

Carta-patente expirada

#21.1

Patente extinta em 18/03/97

07/01/2008

RPI 1956

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