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Official data from INPI

PROCESSO PARA PREPARAR UM ADUTO DE RESINA EPÓXI E COMPOSIÇÃO TERMOFIXA

Prazo de SigiloInvention Patent

Application data

Number

PI8903090

Type

Invention Patent

Filing

06/15/1989

Publication

02/06/1990

Progress at the INPI

  1. Filing06/15/89
  2. Publication02/06/90
  3. Examination04/14/92
  4. Allowance09/05/00
  5. Grant12/26/00
  6. Expired12/26/12

The letters patent expired on 12/26/2012: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 08/15/1989. 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

M. C. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

210.065 · 06/22/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

08/15/1989

RPI 982

Carta-patente expirada

#21.1

Patente extinta em 26/12/2010

12/26/2012

RPI 2190

Concessão da patente

#16.1

12/26/2000

RPI 1564

Deferimento

#9.1

09/05/2000

RPI 1548

Exigência - art. 36 da LPI

#6.1

12/01/1998

RPI 1456

Solicitação de exame técnico

#4.1

04/14/1992

RPI 1115

Publicação do pedido de patente

#3.1

02/06/1990

RPI 1005

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