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Official data from INPI

QUEIMADOR LAMINAR DE MISTURA EXTERNA

Em AnáliseInvention Patent
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Application data

Number

PI8606461

Type

Invention Patent

Filing

12/29/1986

Publication

07/12/1988
View on INPI

Progress at the INPI

  1. Filing12/29/86
  2. Publication07/12/88
  3. Examination10/18/88
  4. Allowance06/19/90
  5. Grant02/13/91
  6. Expired07/22/08

The letters patent expired on 07/22/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 10/18/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

AGA S.A.

RJ, BR

Inventors

F. C. (pessoa física)

BR

Technical data

IPC Classification

F23D 14/22

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

10/18/1988

RPI 939

Publicação do pedido de patente

#3.1

07/12/1988

RPI 925

Pedido de patente depositado

#2.1

04/28/1987

RPI 862

Carta-patente expirada

#21.1

Patente extinta em 29/12/2001

07/22/2008

RPI 1959

Republicação - classificação IPC

#15.11

05/14/1991

RPI 1067

Concessão da patente

#16.1

02/13/1991

RPI 1054

Notificação para pagamento de retribuição

#13.1

10/02/1990

RPI 1035

Deferimento

#9.1

06/19/1990

RPI 1023

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