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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8102705

Type

Invention Patent

Filing

04/29/1981

Publication

12/14/1982

Progress at the INPI

  1. Filing04/29/81
  2. Publication12/14/82
  3. Examination06/07/83
  4. Allowance01/06/87
  5. Grant09/29/87
  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: 09/29/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

S.L. Empreendimentos S/C Ltda

SP, BR

Inventors

M. A. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/29/1987

RPI 884

Notificação para pagamento de retribuição

#13.1

06/09/1987

RPI 868

Deferimento

#9.1

01/06/1987

RPI 846

Exigência - art. 36 da LPI

#6.1

03/25/1986

RPI 805

Conhecimento de parecer técnico

#7.1

02/12/1985

RPI 747

Solicitação de exame técnico

#4.1

06/07/1983

RPI 659

Publicação do pedido de patente

#3.1

12/14/1982

RPI 634

Carta-patente expirada

#21.1

10/01/1996

RPI 1348

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