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Official data from INPI

VÁLVULA SOLENÓIDE DUPLA COM RETENÇÃO.

ConcedidaInvention Patent

Application data

Number

PI8300821

Type

Invention Patent

Filing

02/21/1983

Publication

08/16/1983

Progress at the INPI

  1. Filing02/21/83
  2. Publication08/16/83
  3. Examination02/14/84
  4. Allowance04/22/86
  5. Grant09/30/86
  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: 09/30/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Controles Robertshaw do Brasil S/A

RS, BR

Inventors

A. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/30/1986

RPI 832

Notificação para pagamento de retribuição

#13.1

08/26/1986

RPI 827

Deferimento

#9.1

04/22/1986

RPI 809

Exigência - art. 36 da LPI

#6.1

03/05/1985

RPI 750

Solicitação de exame técnico

#4.1

02/14/1984

RPI 695

Publicação antecipada

#3.2

08/16/1983

RPI 669

Pedido de patente depositado

#2.1

04/05/1983

RPI 650

Carta-patente expirada

#21.1

Patente extinta em 21/02/98

07/01/2008

RPI 1956

20.4

03/30/1993

RPI 1165

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