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Official data from INPI

VÁLVULA PARA LÍQUIDOS DENSOS

ConcedidaInvention Patent

Application data

Number

PI8304871

Type

Invention Patent

Filing

09/08/1983

Publication

04/16/1985

Progress at the INPI

  1. Filing09/08/83
  2. Publication04/16/85
  3. Examination01/07/86
  4. Allowance10/13/87
  5. Grant06/28/88
  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: 06/28/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Indústria e Comércio de Cosméticos Natura Ltda

SP, BR

Indústria e Comércio Natura Ltda.

SP, BR

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Inventors

B. P. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/28/1988

RPI 923

Notificação para pagamento de retribuição

#13.1

02/09/1988

RPI 903

Deferimento

#9.1

10/13/1987

RPI 886

Solicitação de exame técnico

#4.1

01/07/1986

RPI 794

Publicação do pedido de patente

#3.1

04/16/1985

RPI 756

Pedido de patente depositado

#2.1

11/08/1983

RPI 681

Carta-patente expirada

#21.1

Patente extinta em 08/09/98

07/01/2008

RPI 1956

20.4

12/03/1991

RPI 1096

20.7

12/03/1991

RPI 1096

Pedido de licença compulsória

#20.1

11/26/1991

RPI 1095

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