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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8205678

Type

Invention Patent

Filing

09/29/1982

Publication

12/14/1982

Progress at the INPI

  1. Filing09/29/82
  2. Publication12/14/82
  3. Examination04/05/83
  4. Allowance05/07/85
  5. Grant10/29/85
  6. Expired07/01/08

The letters patent expired on 07/01/2008: 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: 10/29/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Perkrom Construções , Industria e Comercio Ltda

SP, BR

Inventors

L. L. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

10/29/1985

RPI 784

Notificação para pagamento de retribuição

#13.1

08/27/1985

RPI 775

Deferimento

#9.1

05/07/1985

RPI 759

Solicitação de exame técnico

#4.1

04/05/1983

RPI 650

Publicação antecipada

#3.2

12/14/1982

RPI 634

Pedido de patente depositado

#2.1

11/23/1982

RPI 631

Carta-patente expirada

#21.1

Patente extinta em 29/09/97

07/01/2008

RPI 1956

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