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Official data from INPI

APARELHO E PROCESSO PARA A QUEIMA DE UM MATERIAL COMBUSTÍVEL

Em AnáliseInvention Patent

Application data

Number

PI8601288

Type

Invention Patent

Filing

03/21/1986

Publication

11/03/1987

Progress at the INPI

  1. Filing03/21/86
  2. Publication11/03/87
  3. Examination12/05/89
  4. Allowance09/29/92
  5. Grant04/27/93
  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.

Talk to a specialist

Latest action published by the INPI: 12/05/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Uop Inc.

US

See this company's full portfolio

Inventors

D. M. (pessoa física)

US

I. C. (pessoa física)

US

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

12/05/1989

RPI 998

Publicação do pedido de patente

#3.1

11/03/1987

RPI 889

Pedido de patente depositado

#2.1

09/02/1986

RPI 828

Carta-patente expirada

#21.1

Patente extinta em 21/03/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

04/27/1993

RPI 1169

Notificação para pagamento de retribuição

#13.1

03/02/1993

RPI 1161

Deferimento

#9.1

09/29/1992

RPI 1139

Conhecimento de parecer técnico

#7.1

07/30/1991

RPI 1078

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