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Official data from INPI

ELEMENTO PRIMÁRIO GALVÂNICO COM ELETRÁLITO ALCALINO, DESCARREGÁVEL SOB ELEVADA TEMPERATURA

PublicadaInvention Patent

Application data

Number

PI8802079

Type

Invention Patent

Filing

04/29/1988

Publication

11/29/1988

Progress at the INPI

  1. Filing04/29/88
  2. Publication11/29/88
  3. Examination09/18/90
  4. Allowance07/09/96
  5. Grant09/30/97
  6. Expired08/26/08

The letters patent expired on 08/26/2008: 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: 11/29/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

V. A. (pessoa física)

DE

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Inventors

D. N. (pessoa física)

DE

R. H. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 37 14 654.8 · 05/02/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

11/29/1988

RPI 945

Carta-patente expirada

#21.1

Patente extinta em 29/04/2008

08/26/2008

RPI 1964

Concessão da patente

#16.1

09/30/1997

RPI 1400

Notificação para pagamento de retribuição

#13.1

05/13/1997

RPI 1380

9.1.3

12/24/1996

RPI 1360

Deferimento

#9.1

07/09/1996

RPI 1336

Exigência - art. 36 da LPI

#6.1

11/07/1995

RPI 1301

Solicitação de exame técnico

#4.1

09/18/1990

RPI 1033

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