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Official data from INPI

PROCESSO DE GELEIFICAR ANODOS DE CÉLULAS ALCALINAS, ANODO GELEIFICADO PARA CÉLULAS, ALCALINAS E CÉLULA ELETROQUÍMICA

DeferidaInvention Patent

Application data

Number

PI8301094

Type

Invention Patent

Filing

03/04/1983

Publication

11/22/1983

Progress at the INPI

  1. Filing03/04/83
  2. Publication11/22/83
  3. Examination12/17/85
  4. Allowance09/26/89
  5. Grant05/29/90
  6. Terminated04/02/96

The patent was granted on 05/29/1990 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 09/26/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Duracell International, Inc

US

See this company's full portfolio

Inventors

R. G. (pessoa física)

W. B. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

355.784 · 03/08/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Deferimento

#9.1

09/26/1989

RPI 988

Exigência - art. 36 da LPI

#6.1

05/02/1989

RPI 967

Exigência - art. 36 da LPI

#6.1

10/11/1988

RPI 938

6.2

11/18/1986

RPI 839

Pedido de certificado de adição de invenção

#5.1

04/29/1986

RPI 810

Solicitação de exame técnico

#4.1

12/17/1985

RPI 791

Publicação do pedido de patente

#3.1

11/22/1983

RPI 683

Pedido de patente depositado

#2.1

04/19/1983

RPI 652

Anuidade - prazo legal encerrado

#18.2

04/02/1996

RPI 1322

Republicação - classificação IPC

#15.11

02/26/1991

RPI 1056

Concessão da patente

#16.1

05/29/1990

RPI 1020

Notificação para pagamento de retribuição

#13.1

01/23/1990

RPI 1003

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