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Official data from INPI

FLOCULANTES POLIMEROS

ConcedidaInvention Patent

Application data

Number

PI7903567

Type

Invention Patent

Filing

06/09/1978

Publication

-

Progress at the INPI

  1. Filing06/09/78
  2. Publication
  3. Examination01/12/82
  4. Allowance11/08/83
  5. Grant04/24/84
  6. Expired04/04/95

The letters patent expired on 04/04/1995: 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: 04/24/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

R. I. (pessoa física)

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Inventors

B. J. (pessoa física)

N. J. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

04/24/1984

RPI 705

Notificação para pagamento de retribuição

#13.1

02/28/1984

RPI 697

Deferimento

#9.1

11/08/1983

RPI 681

Exigência - art. 36 da LPI

#6.1

02/08/1983

RPI 642

6.2

06/22/1982

RPI 609

Solicitação de exame técnico

#4.1

01/12/1982

RPI 586

Carta-patente expirada

#21.1

04/04/1995

RPI 1270

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