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Official data from INPI

SISTEMA DE VEDAÇÃO SEM ANEL

Prazo de SigiloUtility Model

Application data

Number

MU6802697

Type

Utility Model

Filing

12/12/1988

Publication

07/24/1990

Progress at the INPI

  1. Filing12/12/88
  2. Publication07/24/90
  3. Examination10/08/91
  4. Allowance03/08/94
  5. Grant11/29/94
  6. Expired09/25/01

The letters patent expired on 09/25/2001: 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: 05/30/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

C. B. (pessoa física)

SP, BR

Inventors

C. S. (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 12/12/98 conforme disposto no artigo 24 da Lei 5772/71 (CPI).

09/25/2001

RPI 1603

Concessão da patente

#16.1

11/29/1994

RPI 1252

Notificação para pagamento de retribuição

#13.1

06/21/1994

RPI 1229

Deferimento

#9.1

03/08/1994

RPI 1214

Solicitação de exame técnico

#4.1

10/08/1991

RPI 1088

Publicação do pedido de patente

#3.1

07/24/1990

RPI 1025

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