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Official data from INPI

PROCESSO PARA A PREPARAÇÃO DE ALCANODIOIS

PublicadaInvention Patent
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Application data

Number

PI8901753

Type

Invention Patent

Filing

04/12/1989

Publication

11/28/1989
View on INPI

Progress at the INPI

  1. Filing04/12/89
  2. Publication11/28/89
  3. Examination11/12/91
  4. Allowance02/12/97
  5. Grant09/30/97
  6. Expired05/21/13

The letters patent expired on 05/21/2013: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 11/28/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Shell Internationale Research Maatschappij B.V

NL

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Inventors

E. D. (pessoa física)

NL

F. N. (pessoa física)

NL

Technical data

IPC Classification

C07C 29/17C07C 31/20

Priority claims

GB

8808831.5 · 04/14/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

11/28/1989

RPI 997

Pedido de patente depositado

#2.1

05/23/1989

RPI 970

Carta-patente expirada

#21.1

Patente extinta em 12/04/2009

05/21/2013

RPI 2211

Concessão da patente

#16.1

09/30/1997

RPI 1400

Notificação para pagamento de retribuição

#13.1

05/13/1997

RPI 1380

Republicação - classificação IPC

#15.11

02/12/1997

RPI 1367

Deferimento

#9.1

02/12/1997

RPI 1367

Exigência - art. 36 da LPI

#6.1

12/12/1995

RPI 1306

Exigência - art. 36 da LPI

#6.1

05/09/1995

RPI 1275

Solicitação de exame técnico

#4.1

11/12/1991

RPI 1093

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