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Official data from INPI

PROCESSO PARA A PRODUÇÃO DE CIANETO DE HIDROGÊNIO.

ConcedidaInvention Patent
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Application data

Number

PI8104922

Type

Invention Patent

Filing

07/30/1981

Publication

08/31/1982
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Progress at the INPI

  1. Filing07/30/81
  2. Publication08/31/82
  3. Examination10/30/84
  4. Allowance07/14/87
  5. Grant11/24/87
  6. Terminated09/25/90

The patent was granted on 11/24/1987 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: 11/24/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

D. A. (pessoa física)

DE

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Inventors

K. P. (pessoa física)

S. G. (pessoa física)

S. G. (pessoa física)

V. C. (pessoa física)

Technical data

IPC Classification

C01C 3/04

Priority claims

DE

P 30 36 599.2 · 09/27/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/24/1987

RPI 892

Deferimento

#9.1

07/14/1987

RPI 873

Exigência - art. 36 da LPI

#6.1

04/29/1986

RPI 810

Exigência - art. 36 da LPI

#6.1

04/09/1985

RPI 755

Solicitação de exame técnico

#4.1

10/30/1984

RPI 732

Publicação do pedido de patente

#3.1

08/31/1982

RPI 619

Anuidade - prazo legal encerrado

#18.2

09/25/1990

RPI 1034

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