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Official data from INPI

SEM TITULO

Em AnáliseInvention Patent

Application data

Number

PI8105727

Type

Invention Patent

Filing

09/08/1981

Publication

04/19/1983

Progress at the INPI

  1. Filing09/08/81
  2. Publication04/19/83
  3. Examination07/05/83
  4. Allowance05/07/85
  5. Grant12/31/85
  6. Expired08/19/08

The letters patent expired on 08/19/2008: 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: 11/11/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The West Company Brasil Ltda

SP, BR

See this company's full portfolio

Inventors

N. [. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

11/11/1986

RPI 838

Concessão da patente

#16.1

12/31/1985

RPI 793

Notificação para pagamento de retribuição

#13.1

08/27/1985

RPI 775

Republicação - classificação IPC

#15.11

08/06/1985

RPI 772

Deferimento

#9.1

05/07/1985

RPI 759

Solicitação de exame técnico

#4.1

07/05/1983

RPI 663

Publicação do pedido de patente

#3.1

04/19/1983

RPI 652

Pedido de patente depositado

#2.1

10/20/1981

RPI 574

Carta-patente expirada

#21.1

Patente extinta em 08/09/96

08/19/2008

RPI 1963

20.4

12/19/1995

RPI 1307

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