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Official data from INPI

SEM TITULO

Em AnáliseInvention Patent

Application data

Number

PI8302129

Type

Invention Patent

Filing

04/26/1983

Publication

12/27/1983

Progress at the INPI

  1. Filing04/26/83
  2. Publication12/27/83
  3. Examination03/13/84
  4. Allowance07/02/85
  5. Grant12/31/85
  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: 10/06/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

R. C. (pessoa física)

US

Inventors

L. A. (pessoa física)

M. W. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

20.7

10/06/1987

RPI 885

Concessão da patente

#16.1

12/31/1985

RPI 793

Notificação para pagamento de retribuição

#13.1

10/22/1985

RPI 783

Deferimento

#9.1

07/02/1985

RPI 767

Exigência - art. 36 da LPI

#6.1

02/26/1985

RPI 749

Solicitação de exame técnico

#4.1

03/13/1984

RPI 699

Publicação do pedido de patente

#3.1

12/27/1983

RPI 688

Pedido de patente depositado

#2.1

06/14/1983

RPI 660

Carta-patente expirada

#21.1

Patente extinta em 26/04/98

07/01/2008

RPI 1956

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