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Official data from INPI

PILHA GALVÂNICA PRIMÁRIA PARA USO COM ELETRÓLITOS DE ÁGUA SALGADA

Arquivada/ExtintaInvention PatentPCT · NO1989000040

Application data

Number

PI8907415

Type

Invention Patent

Filing

04/28/1989

Publication

05/07/1991

PCT

NO1989000040

Progress at the INPI

  1. Filing04/28/89
  2. Publication05/07/91
  3. Examination02/11/92
  4. Allowance08/31/99
  5. Grant02/08/00
  6. Expired12/26/12

The letters patent expired on 12/26/2012: 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: 12/26/2012. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

D. A. (pessoa física)

NO

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Inventors

O. H. (pessoa física)

NO

Technical data

IPC Classification

Priority claims

NO

881914 · 05/02/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 08/02/2010

12/26/2012

RPI 2190

Concessão da patente

#16.1

02/08/2000

RPI 1518

Deferimento

#9.1

08/31/1999

RPI 1495

Exigência - art. 36 da LPI

#6.1

10/27/1998

RPI 1451

Solicitação de exame técnico

#4.1

02/11/1992

RPI 1106

Notificação de entrada na fase nacional - PCT

#1.3

05/07/1991

RPI 1066

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