Official data from INPI

PROCESSO PARA A OBTENCAO DE CLORETO DE POTASSIO A PARTIR DE CARNALITA NATURAL OU SAIS MISTOS CARNALITICOS

ConcedidaInvention Patent

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Application data

Number

PI8005557

Type

Invention Patent

Filing

10/01/1979

Publication

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Progress at the INPI

Filing10/01/79
Publication
Examination07/26/83
Allowance06/12/84
Grant12/30/86
Terminated02/04/92

The patent was granted on 12/30/1986 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: 12/30/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

KALI & SALZ AG

Inventors

F. G. (pessoa física)

N. U. (pessoa física)

Technical data

IPC Classification

C01D 3/08

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/30/1986

RPI 845

Notificação para pagamento de retribuição

#13.1

10/14/1986

RPI 834

110

07/01/1986

RPI 819

Recurso

#12.1

08/21/1984

RPI 722

Deferimento

#9.1

06/12/1984

RPI 712

Exigência - art. 36 da LPI

#6.1

01/10/1984

RPI 690

Solicitação de exame técnico

#4.1

07/26/1983

RPI 666

Anuidade - prazo legal encerrado

#18.2

02/04/1992

RPI 1105

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