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Official data from INPI

VALVULA

Em AnáliseInvention Patent

Application data

Number

PI7707315

Type

Invention Patent

Filing

10/27/1977

Publication

-

Progress at the INPI

  1. Filing10/27/77
  2. Publication
  3. Examination
  4. Allowance03/08/83
  5. Grant
  6. Expired07/06/93

The letters patent expired on 07/06/1993: 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: 09/02/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

S. L. (pessoa física)

S. S. (pessoa física)

Inventors

S. L. (pessoa física)

S. S. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

09/02/1986

RPI 828

16.4

02/14/1984

RPI 695

Notificação para pagamento de retribuição

#13.1

06/28/1983

RPI 662

Deferimento

#9.1

03/08/1983

RPI 646

Exigência - art. 36 da LPI

#6.1

08/10/1982

RPI 616

Exigência - art. 36 da LPI

#6.1

02/16/1982

RPI 591

Carta-patente expirada

#21.1

07/06/1993

RPI 1179

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