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Official data from INPI

APERFEIÇOAMENTO EM PROCESSO PARA A ELETRÓLISE DE UM CLORETO ALCALINO EM CÉLULA ELETROLÍTICA.

ConcedidaInvention Patent

Application data

Number

PI8000931

Type

Invention Patent

Filing

02/16/1979

Publication

-

Progress at the INPI

  1. Filing02/16/79
  2. Publication
  3. Examination
  4. Allowance04/08/86
  5. Grant10/29/86
  6. Expired05/16/95

The letters patent expired on 05/16/1995: 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: 10/29/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

A. K. (pessoa física)

JP

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Inventors

A. K. (pessoa física)

M. Y. (pessoa física)

Y. M. (pessoa física)

Technical data

IPC Classification

Priority claims

JP

16070/79 · 02/16/1979

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

10/29/1986

RPI 836

Notificação para pagamento de retribuição

#13.1

08/12/1986

RPI 825

Deferimento

#9.1

04/08/1986

RPI 807

Exigência - art. 36 da LPI

#6.1

03/26/1985

RPI 753

Conhecimento de parecer técnico

#7.1

02/21/1984

RPI 696

Carta-patente expirada

#21.1

05/16/1995

RPI 1276

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