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Official data from INPI

PROCESSO E APARELHO PARA ARMAZENAR DE MODO ABSORVÍVEL UM GÁS

Em AnáliseInvention Patent

Application data

Number

PI8802927

Type

Invention Patent

Filing

06/15/1988

Publication

03/21/1989

Progress at the INPI

  1. Filing06/15/88
  2. Publication03/21/89
  3. Examination11/07/89
  4. Allowance01/22/91
  5. Grant08/27/91
  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.

Talk to a specialist

Latest action published by the INPI: 11/07/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Fuel Concepts, Inc

US

Michigan Consolidated Gas Company

US

Inventors

J. T. (pessoa física)

US

K. C. (pessoa física)

Technical data

IPC Classification

Priority claims

US

097.847 · 09/16/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

11/07/1989

RPI 994

Publicação do pedido de patente

#3.1

03/21/1989

RPI 961

Pedido de patente depositado

#2.1

11/08/1988

RPI 942

Carta-patente expirada

#21.1

Patente extinta em 15/06/2003

09/02/2008

RPI 1965

Pedido de licença compulsória

#20.1

04/27/1993

RPI 1169

Concessão da patente

#16.1

08/27/1991

RPI 1082

Notificação para pagamento de retribuição

#13.1

05/14/1991

RPI 1067

Deferimento

#9.1

01/22/1991

RPI 1051

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