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Official data from INPI

PREPARACAO DE(DICLORAMETIL)PIRIDINAS,POR DESCLORETACAO REDUTIVA

Em AnáliseInvention Patent

Application data

Number

PI8007940

Type

Invention Patent

Filing

12/04/1979

Publication

-

Progress at the INPI

  1. Filing12/04/79
  2. Publication
  3. Examination08/02/83
  4. Allowance11/13/84
  5. Grant06/25/85
  6. Terminated09/25/90

The patent was granted on 06/25/1985 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: 06/13/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

DOW CHEMICAL CO [US]

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Inventors

M. L. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

22.2

06/13/1989

RPI 973

Concessão da patente

#16.1

06/25/1985

RPI 766

Notificação para pagamento de retribuição

#13.1

03/26/1985

RPI 753

Deferimento

#9.1

11/13/1984

RPI 734

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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