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Official data from INPI

Espoleta de tempo de baixa energia

Arquivada/ExtintaInvention Patent

Application data

Number

PI9000835

Type

Invention Patent

Filing

02/21/1990

Publication

02/05/1991

Progress at the INPI

  1. Filing02/21/90
  2. Publication02/05/91
  3. Examination06/15/93
  4. Allowance08/19/97
  5. Grant07/28/98
  6. Expired01/08/13

The letters patent expired on 01/08/2013: 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: 01/08/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Imperial Chemical Industries Plc.

GB

See this company's full portfolio

Inventors

A. R. (pessoa física)

ZA

M. H. (pessoa física)

GB

M. B. (pessoa física)

GB

Technical data

Priority claims

GB

8904026.5 · 02/22/1989

GB

9003186.5 · 02/13/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 21/02/2010

01/08/2013

RPI 2192

Concessão da patente

#16.1

07/28/1998

RPI 1440

Deferimento

#9.1

08/19/1997

RPI 1394

Exigência - art. 36 da LPI

#6.1

01/21/1997

RPI 1364

6.2

04/11/1995

RPI 1271

Pedido de certificado de adição de invenção

#5.1

10/13/1993

RPI 1193

Solicitação de exame técnico

#4.1

06/15/1993

RPI 1176

Publicação do pedido de patente

#3.1

02/05/1991

RPI 1053

Pedido de patente depositado

#2.1

06/19/1990

RPI 1023

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