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Official data from INPI

PREPARACAO DE COMPOSICOES DE CIANOACETAMIDA E 2,2-DIBROMO-3-NITRILOPROPIONAMIDA

Em AnáliseInvention Patent

Application data

Number

PI8007724

Type

Invention Patent

Filing

11/26/1979

Publication

-

Progress at the INPI

  1. Filing11/26/79
  2. Publication
  3. Examination08/02/83
  4. Allowance01/15/85
  5. Grant10/01/85
  6. Terminated09/25/90

The patent was granted on 10/01/1985 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 09/19/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

DOW CHEMICAL CO [US]

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Inventors

B. G. (pessoa física)

S. K. (pessoa física)

W. C. (pessoa física)

W. B. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

22.2

09/19/1989

RPI 987

Concessão da patente

#16.1

10/01/1985

RPI 780

Notificação para pagamento de retribuição

#13.1

05/07/1985

RPI 759

Deferimento

#9.1

01/15/1985

RPI 743

Exigência - art. 36 da LPI

#6.1

02/28/1984

RPI 697

Solicitação de exame técnico

#4.1

08/02/1983

RPI 667

Anuidade - prazo legal encerrado

#18.2

09/25/1990

RPI 1034

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