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Official data from INPI

PROTETOR PARA TELEFONES PÚBLICOS E/OU SEMELHANTES

Prazo de SigiloUtility Model

Application data

Number

MU6900907

Type

Utility Model

Filing

05/19/1989

Publication

04/09/1991

Progress at the INPI

  1. Filing05/19/89
  2. Publication04/09/91
  3. Examination07/07/92
  4. Allowance03/29/94
  5. Grant11/29/94
  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.

Talk to a specialist

Latest action published by the INPI: 07/18/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

E. S. (pessoa física)

MG, BR

Inventors

E. S. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

07/18/1989

RPI 978

Carta-patente expirada

#21.1

Patente extinta em 19/05/1999 conforme o disposto no artigo 24 da Lei 5772/71 (CPI).

11/20/2001

RPI 1611

Concessão da patente

#16.1

11/29/1994

RPI 1252

Notificação para pagamento de retribuição

#13.1

08/02/1994

RPI 1235

Deferimento

#9.1

03/29/1994

RPI 1217

Solicitação de exame técnico

#4.1

07/07/1992

RPI 1127

Publicação do pedido de patente

#3.1

04/09/1991

RPI 1062

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