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Official data from INPI

PROCESSO PARA A GERAÇÃO ELETROQUÍMICA DE PENTÓXIDO DE DINITROGÊNIO

Arquivada/ExtintaInvention PatentPCT · GB1989001497

Application data

Number

PI8907832

Type

Invention Patent

Filing

12/14/1989

Publication

10/01/1991

PCT

GB1989001497

Progress at the INPI

  1. Filing12/14/89
  2. Publication10/01/91
  3. Examination06/15/93
  4. Allowance08/18/98
  5. Grant12/29/98
  6. Expired01/02/13

The letters patent expired on 01/02/2013: 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: 01/02/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The Secretary of State for Defence In Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland

GB

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Inventors

G. B. (pessoa física)

GB

Technical data

IPC Classification

Priority claims

GB

8829449.1 · 12/16/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 14/12/2009

01/02/2013

RPI 2191

Concessão da patente

#16.1

12/29/1998

RPI 1460

Deferimento

#9.1

08/18/1998

RPI 1443

Exigência - art. 36 da LPI

#6.1

01/06/1998

RPI 1411

Solicitação de exame técnico

#4.1

06/15/1993

RPI 1176

Notificação de entrada na fase nacional - PCT

#1.3

10/01/1991

RPI 1087

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