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Official data from INPI

POTE COM TAMPA PARA MATERIAL PASTOSO OU SIMILAR

Prazo de SigiloUtility Model

Application data

Number

MU6900587

Type

Utility Model

Filing

04/13/1989

Publication

02/19/1991

Progress at the INPI

  1. Filing04/13/89
  2. Publication02/19/91
  3. Examination04/23/91
  4. Allowance01/05/93
  5. Grant06/29/93
  6. Expired11/20/01

The letters patent expired on 11/20/2001: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 05/30/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Castrol Brasil Ltda.

RJ, BR

See this company's full portfolio

Inventors

G. R. (pessoa física)

BR

M. B. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

05/30/1989

RPI 971

Carta-patente expirada

#21.1

Patente extinta em 13/04/1999 conforme o disposto no artigo 24 da Lei 5772/71 (CPI).

11/20/2001

RPI 1611

Concessão da patente

#16.1

06/29/1993

RPI 1178

Notificação para pagamento de retribuição

#13.1

04/27/1993

RPI 1169

Deferimento

#9.1

01/05/1993

RPI 1153

Solicitação de exame técnico

#4.1

04/23/1991

RPI 1064

Publicação do pedido de patente

#3.1

02/19/1991

RPI 1055

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