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Official data from INPI

MECANISMO DE REGISTRO PARA QUEIMADORES.

Em ExigênciaInvention Patent

Application data

Number

PI8305108

Type

Invention Patent

Filing

09/15/1983

Publication

04/24/1984

Progress at the INPI

  1. Filing09/15/83
  2. Publication04/24/84
  3. Examination07/22/86
  4. Allowance06/05/90
  5. Grant11/27/90
  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: 01/27/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Damper Design, Inc

US

Inventors

D. H. (pessoa física)

US

L. G. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

418.434 · 09/15/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Exigência - art. 36 da LPI

#6.1

01/27/1987

RPI 849

Solicitação de exame técnico

#4.1

07/22/1986

RPI 822

Publicação do pedido de patente

#3.1

04/24/1984

RPI 705

Pedido de patente depositado

#2.1

11/22/1983

RPI 683

Carta-patente expirada

#21.1

Patente extinta em 15/09/98

07/01/2008

RPI 1956

Pedido de licença compulsória

#20.1

06/23/1992

RPI 1125

Concessão da patente

#16.1

11/27/1990

RPI 1043

Notificação para pagamento de retribuição

#13.1

09/18/1990

RPI 1033

Deferimento

#9.1

06/05/1990

RPI 1021

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