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Official data from INPI

APERFEICOAMENTO EM PROCESSO PARA PRODUZIR UMA 3-METIL-2-(4-HALOFENIL)-BUTIRONITRILA

ConcedidaInvention Patent

Application data

Number

PI7705485

Type

Invention Patent

Filing

08/23/1976

Publication

-

Progress at the INPI

  1. Filing08/23/76
  2. Publication
  3. Examination
  4. Allowance08/24/82
  5. Grant03/29/83
  6. Terminated01/21/92

The patent was granted on 03/29/1983 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: 03/29/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

SUMITOMO CHEMICAL CO

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Inventors

F. K. (pessoa física)

K. S. (pessoa física)

M. F. (pessoa física)

N. S. (pessoa física)

U. T. (pessoa física)

U. Y. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

03/29/1983

RPI 649

Notificação para pagamento de retribuição

#13.1

01/11/1983

RPI 638

Deferimento

#9.1

08/24/1982

RPI 618

Exigência - art. 36 da LPI

#6.1

02/16/1982

RPI 591

Anuidade - prazo legal encerrado

#18.2

01/21/1992

RPI 1103

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