Official data from INPI

PROCESSO PARA PURIFICAR UMA SOLUCAO AQUOSA DE UM HALOGENETO DE METAL ALCALINO PARA ELETROLISE

ConcedidaInvention Patent

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Application data

Number

PI7805611

Type

Invention Patent

Filing

10/13/1977

Publication

View on INPI

Progress at the INPI

Filing10/13/77
Publication
Examination
Allowance08/16/83
Grant02/28/84
Terminated01/28/92

The patent was granted on 02/28/1984 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: 02/28/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

CHLORINE ENG CORP LTD

Inventors

F. S. (pessoa física)

Y. K. (pessoa física)

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

02/28/1984

RPI 697

Notificação para pagamento de retribuição

#13.1

12/06/1983

RPI 685

Deferimento

#9.1

08/16/1983

RPI 669

15.0

08/10/1982

RPI 616

Exigência - art. 36 da LPI

#6.1

07/27/1982

RPI 614

6.2

11/10/1981

RPI 577

Anuidade - prazo legal encerrado

#18.2

01/28/1992

RPI 1104

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