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Official data from INPI

CALHA VIBRATÓRIA

DeferidaUtility Model

Application data

Number

MU6401740

Type

Utility Model

Filing

10/23/1984

Publication

05/27/1986

Progress at the INPI

  1. Filing10/23/84
  2. Publication05/27/86
  3. Examination03/29/88
  4. Allowance08/29/89
  5. Grant04/24/90
  6. Expired11/22/94

The letters patent expired on 11/22/1994: 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: 08/29/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Usinas Siderúrgicas de Minas Gerais S/A - USIMINAS

MG, BR

See this company's full portfolio

Inventors

A. N. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Deferimento

#9.1

08/29/1989

RPI 984

Exigência - art. 36 da LPI

#6.1

04/11/1989

RPI 964

Solicitação de exame técnico

#4.1

03/29/1988

RPI 910

15.19

01/12/1988

RPI 899

Retificação

#15.3

09/15/1987

RPI 882

Republicação - classificação IPC

#15.11

09/02/1986

RPI 828

Publicação do pedido de patente

#3.1

05/27/1986

RPI 814

Pedido de patente depositado

#2.1

06/18/1985

RPI 765

Carta-patente expirada

#21.1

11/22/1994

RPI 1251

Concessão da patente

#16.1

04/24/1990

RPI 1015

Notificação para pagamento de retribuição

#13.1

01/09/1990

RPI 1001

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