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Official data from INPI

ISQUEIRO QUEIMADOR DE COMBUSTÍVEL

PublicadaInvention Patent
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Application data

Number

PI8802322

Type

Invention Patent

Filing

05/12/1988

Publication

12/13/1988
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Progress at the INPI

  1. Filing05/12/88
  2. Publication12/13/88
  3. Examination02/19/91
  4. Allowance02/09/93
  5. Grant06/29/93
  6. Expired09/02/08

The letters patent expired on 09/02/2008: 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: 12/13/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

F. S. (pessoa física)

AT

Inventors

F. S. (pessoa física)

AT

Technical data

IPC Classification

F23Q 2/173

Priority claims

US

050.161 · 05/14/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

12/13/1988

RPI 947

Pedido de patente depositado

#2.1

10/25/1988

RPI 940

Carta-patente expirada

#21.1

Patente extinta em 12/05/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

06/29/1993

RPI 1178

Notificação para pagamento de retribuição

#13.1

04/06/1993

RPI 1166

100

02/09/1993

RPI 1158

Petição de recurso

#12.2

03/10/1992

RPI 1110

Indeferimento

#9.2

11/26/1991

RPI 1095

Solicitação de exame técnico

#4.1

02/19/1991

RPI 1055

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