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Official data from INPI

PROCESSO PARA A EPOXIDAÇÃO CATALÍTICA ASSIMÉTRICA DE UMA OLEFINA, E, PROCESSO PARA PREPARAR GLICIDOL A PARTIR DE ÁLCOOL ALÍLICO

Em AnáliseInvention Patent

Application data

Number

PI8601504

Type

Invention Patent

Filing

04/03/1986

Publication

12/09/1986

Progress at the INPI

  1. Filing04/03/86
  2. Publication12/09/86
  3. Examination01/24/89
  4. Allowance04/09/96
  5. Grant03/25/97
  6. Expired07/22/08

The letters patent expired on 07/22/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 01/24/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Massachusetts Institute of Technology

US

See this company's full portfolio

Inventors

K. S. (pessoa física)

US

R. H. (pessoa física)

US

S. K. (pessoa física)

GB

Technical data

IPC Classification

Priority claims

US

719776 · 04/04/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

01/24/1989

RPI 953

Publicação do pedido de patente

#3.1

12/09/1986

RPI 842

Pedido de patente depositado

#2.1

10/21/1986

RPI 835

Carta-patente expirada

#21.1

Patente extinta em 03/04/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

03/25/1997

RPI 1373

Deferimento

#9.1

04/09/1996

RPI 1323

Exigência - art. 36 da LPI

#6.1

06/06/1995

RPI 1279

Conhecimento de parecer técnico

#7.1

10/06/1992

RPI 1140

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