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Official data from INPI

COMPOSIÇÃO DE ADESIVO DE URETANA DE DOIS COMPONENTES, COMPÓSITO DE ADESIVO DE URETANA, E, PROCESSO PARA ADERIR PELO MENOS UM SUBSTRATO ISENTO DE TRATAMENTO DE SUPERFÍCIE A UM OUTRO SUBSTRATO

Prazo de SigiloInvention Patent

Application data

Number

PI8803891

Type

Invention Patent

Filing

08/05/1988

Publication

03/13/1990

Progress at the INPI

  1. Filing08/05/88
  2. Publication03/13/90
  3. Examination11/06/90
  4. Allowance03/12/96
  5. Grant10/29/96
  6. Expired09/02/08

The letters patent expired on 09/02/2008: 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: 01/10/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

GenCorp Inc

US

See this company's full portfolio

Inventors

E. M. (pessoa física)

US

H. C. (pessoa física)

US

Technical data

Priority claims

US

158,005 · 02/18/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

01/10/1989

RPI 951

Carta-patente expirada

#21.1

Patente extinta em 05/08/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

10/29/1996

RPI 1352

Deferimento

#9.1

03/12/1996

RPI 1319

Exigência - art. 36 da LPI

#6.1

06/27/1995

RPI 1282

Solicitação de exame técnico

#4.1

11/06/1990

RPI 1040

Publicação do pedido de patente

#3.1

03/13/1990

RPI 1009

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