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Official data from INPI

PROCESSO E DISPOSITIVO PARA POR EM CONTATO SUBSTANCIAS QUE SE APRESENTAM PELO MENOS SOB DUAS FASES DIFERENTES

ConcedidaInvention Patent

Application data

Number

PI7902180

Type

Invention Patent

Filing

04/10/1978

Publication

-

Progress at the INPI

  1. Filing04/10/78
  2. Publication
  3. Examination12/08/81
  4. Allowance08/30/83
  5. Grant03/27/84
  6. Expired06/21/94

The letters patent expired on 06/21/1994: 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: 03/27/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

R. I. (pessoa física)

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Inventors

P. F. (pessoa física)

S. A. (pessoa física)

V. J. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

03/27/1984

RPI 701

Notificação para pagamento de retribuição

#13.1

12/20/1983

RPI 687

Deferimento

#9.1

08/30/1983

RPI 671

Exigência - art. 36 da LPI

#6.1

07/13/1982

RPI 612

Solicitação de exame técnico

#4.1

12/08/1981

RPI 581

Carta-patente expirada

#21.1

06/21/1994

RPI 1229

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