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Official data from INPI

DISPOSIÇÃO INTRODUZIDA EM REGULADOR DE PRESSÃO DE GÁS

PublicadaUtility Model

Application data

Number

MU6901391

Type

Utility Model

Filing

07/21/1989

Publication

11/21/1989

Progress at the INPI

  1. Filing07/21/89
  2. Publication11/21/89
  3. Examination09/04/90
  4. Allowance03/01/95
  5. Grant10/31/95
  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: 11/21/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Aliança Metalúrgica S/A

SP, BR

See this company's full portfolio

Inventors

A. O. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação antecipada

#3.2

11/21/1989

RPI 996

Pedido de patente depositado

#2.1

10/10/1989

RPI 990

Carta-patente expirada

#21.1

Patente extinta em 21/07/1999 conforme o disposto no artigo 24 da Lei 5772/71 (CPI).

11/20/2001

RPI 1611

Concessão da patente

#16.1

10/31/1995

RPI 1300

Notificação para pagamento de retribuição

#13.1

07/18/1995

RPI 1285

Deferimento

#9.1

03/01/1995

RPI 1265

Solicitação de exame técnico

#4.1

09/04/1990

RPI 1031

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