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Official data from INPI

APARELHO PARA DESTILAÇÃO FRACIONADA SOB VÁCUO

Em AnáliseInvention Patent

Application data

Number

PI8400765

Type

Invention Patent

Filing

02/21/1984

Publication

09/25/1984

Progress at the INPI

  1. Filing02/21/84
  2. Publication09/25/84
  3. Examination09/30/86
  4. Allowance06/13/89
  5. Grant01/09/90
  6. Terminated02/25/92

The patent was granted on 01/09/1990 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: 10/10/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Shell Internationale Research Maatschappij B.V

NL

See this company's full portfolio

Inventors

A. K. (pessoa física)

D. K. (pessoa física)

NL

Technical data

IPC Classification

Priority claims

GB

8305016 · 02/23/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação para pagamento de retribuição

#13.1

10/10/1989

RPI 990

Deferimento

#9.1

06/13/1989

RPI 973

Exigência - art. 36 da LPI

#6.1

12/06/1988

RPI 946

6.2

06/28/1988

RPI 923

Solicitação de exame técnico

#4.1

09/30/1986

RPI 832

Publicação do pedido de patente

#3.1

09/25/1984

RPI 727

Pedido de patente depositado

#2.1

05/08/1984

RPI 707

Anuidade - prazo legal encerrado

#18.2

02/25/1992

RPI 1108

Concessão da patente

#16.1

01/09/1990

RPI 1001

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