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Official data from INPI

PROCESSO E APARELHO PARA A SEPARACAO DE EMULSOES POR COALESCENCIA

ConcedidaInvention Patent

Application data

Number

PI7801846

Type

Invention Patent

Filing

03/28/1977

Publication

-

Progress at the INPI

  1. Filing03/28/77
  2. Publication
  3. Examination
  4. Allowance02/08/83
  5. Grant08/30/83
  6. Terminated06/29/93

The patent was granted on 08/30/1983 and later terminated. Protection ended before the full term and the technology is in the public domain in Brazil.

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Latest action published by the INPI: 08/30/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

DEGREMONT

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Inventors

C. M. (pessoa física)

L. H. (pessoa física)

S. G. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/30/1983

RPI 671

Notificação para pagamento de retribuição

#13.1

06/07/1983

RPI 659

Deferimento

#9.1

02/08/1983

RPI 642

Exigência - art. 36 da LPI

#6.1

01/26/1982

RPI 588

21.5

07/06/1993

RPI 1179

Carta-patente expirada

#21.1

06/29/1993

RPI 1178

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