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Official data from INPI

BOMBA MULTIPLICADORA DE PRESSÃO

Em AnáliseUtility Model

Application data

Number

MU6501538

Type

Utility Model

Filing

10/08/1985

Publication

05/12/1987

Progress at the INPI

  1. Filing10/08/85
  2. Publication05/12/87
  3. Examination05/09/89
  4. Allowance06/11/91
  5. Grant12/31/91
  6. Expired11/07/95

The letters patent expired on 11/07/1995: 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: 05/09/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Usinas Siderúrgicas de Minas Gerais - USIMINAS (Grupo Siderbrás)

MG, BR

See this company's full portfolio

Inventors

A. C. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

05/09/1989

RPI 968

4.2.1

01/31/1989

RPI 954

Solicitação de exame não realizada

#4.2

08/09/1988

RPI 929

Publicação do pedido de patente

#3.1

05/12/1987

RPI 864

Pedido de patente depositado

#2.1

12/31/1985

RPI 793

Carta-patente expirada

#21.1

11/07/1995

RPI 1301

Concessão da patente

#16.1

12/31/1991

RPI 1100

Notificação para pagamento de retribuição

#13.1

10/08/1991

RPI 1088

Deferimento

#9.1

06/11/1991

RPI 1071

Exigência - art. 36 da LPI

#6.1

01/15/1991

RPI 1050

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