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Official data from INPI

ENGATE PARA ESGUICHO E SIMILARES

Em AnáliseInvention Patent

Application data

Number

PI7702468

Type

Invention Patent

Filing

04/18/1977

Publication

-

Progress at the INPI

  1. Filing04/18/77
  2. Publication
  3. Examination
  4. Allowance11/17/81
  5. Grant02/22/83
  6. Expired09/21/93

The letters patent expired on 09/21/1993: 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: 09/23/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

B. C. (pessoa física)

CARDOSO E

Inventors

B. C. (pessoa física)

C. E. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

20.4

09/23/1986

RPI 831

Pedido de licença compulsória

#20.1

10/23/1984

RPI 731

Concessão da patente

#16.1

02/22/1983

RPI 644

110

11/03/1982

RPI 628

Recurso

#12.1

03/16/1982

RPI 595

Deferimento

#9.1

11/17/1981

RPI 578

Carta-patente expirada

#21.1

09/21/1993

RPI 1190

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