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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8206277

Type

Invention Patent

Filing

10/04/1982

Publication

04/17/1984

Progress at the INPI

  1. Filing10/04/82
  2. Publication04/17/84
  3. Examination08/21/84
  4. Allowance10/14/86
  5. Grant06/30/87
  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: 06/30/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

M. I. (pessoa física)

US

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Inventors

M. M. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/30/1987

RPI 871

Notificação para pagamento de retribuição

#13.1

03/10/1987

RPI 855

Deferimento

#9.1

10/14/1986

RPI 834

Exigência - art. 36 da LPI

#6.1

07/09/1985

RPI 768

Solicitação de exame técnico

#4.1

08/21/1984

RPI 722

Publicação do pedido de patente

#3.1

04/17/1984

RPI 704

Pedido de patente depositado

#2.1

12/21/1982

RPI 635

Carta-patente expirada

#21.1

Patente extinta em 04/10/97

07/01/2008

RPI 1956

20.4

10/16/1990

RPI 1037

20.7

10/16/1990

RPI 1037

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