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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8304175

Type

Invention Patent

Filing

08/01/1983

Publication

03/12/1985

Progress at the INPI

  1. Filing08/01/83
  2. Publication03/12/85
  3. Examination08/13/85
  4. Allowance02/17/87
  5. Grant09/29/87
  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: 09/29/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Viés Vitrolândia Ltda

SP, BR

Inventors

B. [. (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

06/23/1987

RPI 870

Deferimento

#9.1

02/17/1987

RPI 852

Solicitação de exame técnico

#4.1

08/13/1985

RPI 773

Publicação do pedido de patente

#3.1

03/12/1985

RPI 751

Pedido de patente depositado

#2.1

10/11/1983

RPI 677

Carta-patente expirada

#21.1

Patente extinta em 01/08/98

07/01/2008

RPI 1956

Pedido de licença compulsória

#20.1

12/19/1995

RPI 1307

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