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Official data from INPI

DISPOSITIVO REGULADOR DE NÍVEL DE ROLDANA CÔNCAVA PARA PORTA OU JANELA DE CORRER

Prazo de SigiloUtility Model

Application data

Number

MU6802766

Type

Utility Model

Filing

12/16/1988

Publication

08/07/1990

Progress at the INPI

  1. Filing12/16/88
  2. Publication08/07/90
  3. Examination11/24/92
  4. Allowance08/23/94
  5. Grant04/25/95
  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: 05/23/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Alcoa Alumínio S/A

MG, BR

See this company's full portfolio

Inventors

A. Z. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

05/23/1989

RPI 970

Carta-patente expirada

#21.1

Patente extinta em 16/12/98 conforme disposto no artigo 24 da Lei 5772/71 (CPI).

09/25/2001

RPI 1603

Concessão da patente

#16.1

04/25/1995

RPI 1273

Notificação para pagamento de retribuição

#13.1

12/20/1994

RPI 1255

Deferimento

#9.1

08/23/1994

RPI 1238

Exigência - art. 36 da LPI

#6.1

02/16/1994

RPI 1211

14.1

04/13/1993

RPI 1167

Solicitação de exame técnico

#4.1

11/24/1992

RPI 1147

14.4

05/07/1991

RPI 1066

Publicação do pedido de patente

#3.1

08/07/1990

RPI 1027

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