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Official data from INPI

DISPOSITIVO PARA A MISTURA DE DOIS FLUIDOS

ConcedidaInvention Patent

Application data

Number

PI8001313

Type

Invention Patent

Filing

03/06/1979

Publication

-

Progress at the INPI

  1. Filing03/06/79
  2. Publication
  3. Examination01/11/83
  4. Allowance05/22/84
  5. Grant11/27/84
  6. Expired05/16/95

The letters patent expired on 05/16/1995: 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: 11/27/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

STAMICARBON

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Inventors

N. J. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/27/1984

RPI 736

Notificação para pagamento de retribuição

#13.1

09/04/1984

RPI 724

Deferimento

#9.1

05/22/1984

RPI 709

Republicação - classificação IPC

#15.11

03/07/1984

RPI 698

Exigência - art. 36 da LPI

#6.1

11/16/1983

RPI 682

Solicitação de exame técnico

#4.1

01/11/1983

RPI 638

Carta-patente expirada

#21.1

05/16/1995

RPI 1276

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