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Official data from INPI

MÉTODO PARA DESATIVAÇÃO DE AGENTES CATALÍTICOS RESIDUAIS CORROSIVOS E ATIVOS EM UM POLÍMERO DE OLEFINA

Prazo de SigiloInvention Patent

Application data

Number

PI8804250

Type

Invention Patent

Filing

08/15/1988

Publication

04/10/1990

Progress at the INPI

  1. Filing08/15/88
  2. Publication04/10/90
  3. Examination05/21/91
  4. Allowance03/19/96
  5. Grant05/27/97
  6. Expired08/26/08

The letters patent expired on 08/26/2008: 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: 01/31/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Buckman Laboratories International Inc

US

See this company's full portfolio

Inventors

O. M. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

152,921 · 02/05/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

01/31/1989

RPI 954

Carta-patente expirada

#21.1

Patente extinta em 15/08/2008

08/26/2008

RPI 1964

Concessão da patente

#16.1

05/27/1997

RPI 1382

Notificação para pagamento de retribuição

#13.1

12/10/1996

RPI 1358

Deferimento

#9.1

03/19/1996

RPI 1320

Exigência - art. 36 da LPI

#6.1

08/01/1995

RPI 1287

Solicitação de exame técnico

#4.1

05/21/1991

RPI 1068

Publicação do pedido de patente

#3.1

04/10/1990

RPI 1013

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