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Official data from INPI

PROCESSO PARA A PREPARAÇÃO DE CIANIDRINA QUIRAL OU DE MISTURA ENANTIOMERICAMENTE ENRIQUECIDA NESTA, PROCESSO PARA INICIAÇÃO DE PROCESSO DE CIANIDRINAÇÃO QUIRAL E PROCESSO PARA ELEVAR A TAXA DE CONVERSÃO E A SELETIVIDADE ENANTIOMÉRICA EM CIANIDRINAÇÃO QUIRAL

Em AnáliseInvention Patent

Application data

Number

PI8602922

Type

Invention Patent

Filing

06/24/1986

Publication

02/17/1987

Progress at the INPI

Awaiting grant fee payment
  1. Filing06/24/86
  2. Publication02/17/87
  3. Examination05/16/89
  4. Allowance08/04/92
  5. Grant
  6. In force

The application was allowed by the INPI on 08/04/1992. The grant of the letters patent is being processed.

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Latest action published by the INPI: 05/16/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Shell Oil Company

US

See this company's full portfolio

Inventors

P. F. (pessoa física)

US

W. D. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

749.618 · 06/26/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

05/16/1989

RPI 969

Publicação do pedido de patente

#3.1

02/17/1987

RPI 852

Pedido de patente depositado

#2.1

12/23/1986

RPI 844

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. As classificações IPC anteriores eram: C07C 121/75; C07C 120/06.

03/27/2018

RPI 2464

Retificação

#15.3

02/02/1993

RPI 1157

Republicação - classificação IPC

#15.11

09/15/1992

RPI 1137

Deferimento

#9.1

08/04/1992

RPI 1131

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