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Official data from INPI

CÉLULA GALVÂNICA VEDADA CILÍNDRICA.

Em ExigênciaInvention Patent
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Application data

Number

PI8303176

Type

Invention Patent

Filing

06/15/1983

Publication

01/31/1984
View on INPI

Progress at the INPI

  1. Filing06/15/83
  2. Publication01/31/84
  3. Examination03/25/86
  4. Allowance07/24/90
  5. Grant02/26/91
  6. Expired07/01/08

The letters patent expired on 07/01/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 10/11/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Duracell International Inc.

US

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Inventors

M. W. (pessoa física)

US

R. B. (pessoa física)

CA

Technical data

IPC Classification

H01M 2/08

Priority claims

CA

405.244 · 06/16/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Exigência - art. 36 da LPI

#6.1

10/11/1988

RPI 938

6.2

02/24/1987

RPI 853

Solicitação de exame técnico

#4.1

03/25/1986

RPI 805

Publicação do pedido de patente

#3.1

01/31/1984

RPI 693

Pedido de patente depositado

#2.1

07/26/1983

RPI 666

Carta-patente expirada

#21.1

Patente extinta em 15/06/98

07/01/2008

RPI 1956

Concessão da patente

#16.1

02/26/1991

RPI 1056

Notificação para pagamento de retribuição

#13.1

11/06/1990

RPI 1040

Deferimento

#9.1

07/24/1990

RPI 1025

Exigência - art. 36 da LPI

#6.1

01/16/1990

RPI 1002

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