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Official data from INPI

PROCESSO PARA SEPARAÇÃO DE CERA DE UM ÓLEO NEUTRO REFINADO COM SOLVENTE.

ConcedidaInvention Patent

Application data

Number

PI8301979

Type

Invention Patent

Filing

04/18/1983

Publication

12/20/1983

Progress at the INPI

  1. Filing04/18/83
  2. Publication12/20/83
  3. Examination09/24/85
  4. Allowance05/31/88
  5. Grant12/27/88
  6. Terminated02/18/92

The patent was granted on 12/27/1988 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 12/27/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

M. C. (pessoa física)

US

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Inventors

C. W. (pessoa física)

G. E. (pessoa física)

Technical data

IPC Classification

Priority claims

US

369.852 · 04/19/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/27/1988

RPI 949

Notificação para pagamento de retribuição

#13.1

09/20/1988

RPI 935

Deferimento

#9.1

05/31/1988

RPI 919

Exigência - art. 36 da LPI

#6.1

09/01/1987

RPI 880

Pedido de certificado de adição de invenção

#5.1

01/21/1986

RPI 796

Solicitação de exame técnico

#4.1

09/24/1985

RPI 779

Publicação do pedido de patente

#3.1

12/20/1983

RPI 687

Pedido de patente depositado

#2.1

06/07/1983

RPI 659

Anuidade - prazo legal encerrado

#18.2

02/18/1992

RPI 1107

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