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Official data from INPI

LIGA DE ALUMÍNIO PARA CONDUTORES ELÉTRICOS

ConcedidaInvention Patent

Application data

Number

PI8103057

Type

Invention Patent

Filing

05/18/1981

Publication

12/21/1982

Progress at the INPI

  1. Filing05/18/81
  2. Publication12/21/82
  3. Examination06/07/83
  4. Allowance01/10/89
  5. Grant08/29/89
  6. Expired10/01/96

The letters patent expired on 10/01/1996: 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: 08/29/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Pirelli Cabos S/A

SP, BR

See this company's full portfolio

Inventors

J. C. (pessoa física)

BR

M. S. (pessoa física)

BR

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/29/1989

RPI 984

Deferimento

#9.1

01/10/1989

RPI 951

Exigência - art. 36 da LPI

#6.1

01/21/1987

RPI 848

Exigência - art. 36 da LPI

#6.1

06/10/1986

RPI 816

Exigência - art. 36 da LPI

#6.1

01/29/1985

RPI 745

Pedido de certificado de adição de invenção

#5.1

10/18/1983

RPI 678

Solicitação de exame técnico

#4.1

06/07/1983

RPI 659

Publicação do pedido de patente

#3.1

12/21/1982

RPI 635

Carta-patente expirada

#21.1

10/01/1996

RPI 1348

20.4

08/11/1992

RPI 1132

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