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Official data from INPI

CONTROLE DE COMBUSTÍVEL EM LAÇO FECHADO

Arquivada/ExtintaInvention Patent

Application data

Number

PI9002857

Type

Invention Patent

Filing

06/18/1990

Publication

08/20/1991

Progress at the INPI

  1. Filing06/18/90
  2. Publication08/20/91
  3. Examination11/26/91
  4. Allowance12/01/98
  5. Grant08/10/99
  6. Expired01/15/13

The letters patent expired on 01/15/2013: 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: 01/15/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

G. C. (pessoa física)

US

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Inventors

D. B. (pessoa física)

US

E. G. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

366,961 · 06/16/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 18/06/2010

01/15/2013

RPI 2193

Concessão da patente

#16.1

08/10/1999

RPI 1492

Deferimento

#9.1

12/01/1998

RPI 1456

Exigência - art. 36 da LPI

#6.1

05/05/1998

RPI 1428

Solicitação de exame técnico

#4.1

11/26/1991

RPI 1095

Publicação do pedido de patente

#3.1

08/20/1991

RPI 1081

Pedido de patente depositado

#2.1

10/30/1990

RPI 1039

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