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Official data from INPI

CÉLULA ELETROQUÍMICA DESPOLARIZADA POR CÁTODO FLUIDO.

ConcedidaInvention Patent

Application data

Number

PI8005586

Type

Invention Patent

Filing

09/02/1980

Publication

-

Progress at the INPI

  1. Filing09/02/80
  2. Publication
  3. Examination05/24/83
  4. Allowance04/17/84
  5. Grant11/27/84
  6. Terminated08/02/94

The patent was granted on 11/27/1984 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 11/27/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Duracell International Inc.

US

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Inventors

B. J. (pessoa física)

Technical data

IPC Classification

Priority claims

US

072.525 · 09/04/1979

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/27/1984

RPI 736

Notificação para pagamento de retribuição

#13.1

08/07/1984

RPI 720

Deferimento

#9.1

04/17/1984

RPI 704

Exigência - art. 36 da LPI

#6.1

11/08/1983

RPI 681

Solicitação de exame técnico

#4.1

05/24/1983

RPI 657

Anuidade - prazo legal encerrado

#18.2

08/02/1994

RPI 1235

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