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Official data from INPI

CÉLULA E PROCESSO DE ELETRÓLISE

Em AnáliseInvention Patent

Application data

Number

PI8100488

Type

Invention Patent

Filing

01/28/1981

Publication

-

Progress at the INPI

  1. Filing01/28/81
  2. Publication
  3. Examination10/18/83
  4. Allowance09/01/87
  5. Grant02/23/88
  6. Terminated11/16/88

The patent was granted on 02/23/1988 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: 11/16/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

ALUMINUM COMPANY OF AMERICA

See this company's full portfolio

Inventors

C. J. (pessoa física)

Technical data

IPC Classification

Priority claims

US

115.621 · 01/28/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

11/16/1988

RPI 943

Concessão da patente

#16.1

02/23/1988

RPI 905

Notificação para pagamento de retribuição

#13.1

12/29/1987

RPI 897

Deferimento

#9.1

09/01/1987

RPI 880

Exigência - art. 36 da LPI

#6.1

01/07/1986

RPI 794

Republicação - classificação IPC

#15.11

12/18/1984

RPI 739

Exigência - art. 36 da LPI

#6.1

11/06/1984

RPI 733

Solicitação de exame técnico

#4.1

10/18/1983

RPI 678

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