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Official data from INPI

DISPOSITIVO E PROCESSO DE AQUECIMENTO QUE EMPREGA UM QUEIMADOR IRRADIANTE QUE QUEIMA UM GÁS COMBUSTÍVEL CONSTITUÍDO DE UMA MISTURA DE COMBUSTÍVEL GASOSO E AR DE COMBUSTÃO

Arquivada/ExtintaInvention Patent

Application data

Number

PI9102981

Type

Invention Patent

Filing

07/12/1991

Publication

02/11/1992

Progress at the INPI

  1. Filing07/12/91
  2. Publication02/11/92
  3. Examination05/26/92
  4. Allowance09/26/95
  5. Grant05/28/96
  6. Expired06/29/10

The letters patent expired on 06/29/2010: 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: 06/29/2010. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

C. C. (pessoa física)

US

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Inventors

D. C. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

07/557,240 · 07/25/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 12/07/2006

06/29/2010

RPI 2060

Concessão da patente

#16.1

05/28/1996

RPI 1330

Deferimento

#9.1

09/26/1995

RPI 1295

Solicitação de exame técnico

#4.1

05/26/1992

RPI 1121

Publicação do pedido de patente

#3.1

02/11/1992

RPI 1106

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