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Official data from INPI

VALVULA DE ENTRADA

Em AnáliseInvention Patent

Application data

Number

PI7703620

Type

Invention Patent

Filing

06/02/1977

Publication

-

Progress at the INPI

  1. Filing06/02/77
  2. Publication
  3. Examination
  4. Allowance11/03/81
  5. Grant08/31/82
  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: 09/17/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

CELITE SA IND COM

Inventors

G. S. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Cessão de direito de exploração

#22.1

09/17/1985

RPI 778

312

04/30/1985

RPI 758

300

11/13/1984

RPI 734

200

07/17/1984

RPI 717

Pedido de licença voluntária

#17.1

01/24/1984

RPI 692

212

01/17/1984

RPI 691

Pedido de licença voluntária

#17.1

08/16/1983

RPI 669

Concessão da patente

#16.1

08/31/1982

RPI 619

Notificação para pagamento de retribuição

#13.1

03/02/1982

RPI 593

Deferimento

#9.1

11/03/1981

RPI 576

Carta-patente expirada

#21.1

07/06/1993

RPI 1179

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