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Official data from INPI

PROCESSO PARA A PREPARAÇÃO DE RESINAS EPÓXI DE PESO MOLECULAR MODIFICADO

Em AnáliseInvention Patent

Application data

Number

PI8406168

Type

Invention Patent

Filing

02/21/1984

Publication

03/12/1985

Progress at the INPI

  1. Filing02/21/84
  2. Publication03/12/85
  3. Examination06/16/87
  4. Allowance05/16/89
  5. Grant01/09/90
  6. Terminated09/12/95

The patent was granted on 01/09/1990 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: 09/12/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The Dow Chemical Company

US

See this company's full portfolio

Inventors

D. A. (pessoa física)

US

P. A. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

470.107 · 02/28/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação para pagamento de retribuição

#13.1

09/12/1989

RPI 986

Deferimento

#9.1

05/16/1989

RPI 969

Exigência - art. 36 da LPI

#6.1

10/18/1988

RPI 939

Solicitação de exame técnico

#4.1

06/16/1987

RPI 869

Notificação de entrada na fase nacional - PCT

#1.3

03/12/1985

RPI 751

Anuidade - prazo legal encerrado

#18.2

09/12/1995

RPI 1293

Concessão da patente

#16.1

01/09/1990

RPI 1001

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