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Official data from INPI

PROCESSO PARA SEPARAR OS ISÓMEROS OTICAMENTE ATIVOS INDIVIDUAIS DE FORMAS GIS OU TRANS DE ÁCIDOS CICLOPRAPANO- CARBOXÍLICOS E PRODUTOS OBTIDOS

ConcedidaInvention Patent

Application data

Number

PI7906875

Type

Invention Patent

Filing

10/24/1979

Publication

-

Progress at the INPI

  1. Filing10/24/79
  2. Publication
  3. Examination08/31/82
  4. Allowance01/10/84
  5. Grant07/31/84
  6. Expired04/25/95

The letters patent expired on 04/25/1995: 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: 07/31/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Imperial Chemical Industries Plc.

GB

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Inventors

L. T. (pessoa física)

Technical data

IPC Classification

Priority claims

GB

42266/78 · 10/27/1978

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/31/1984

RPI 719

Notificação para pagamento de retribuição

#13.1

05/02/1984

RPI 706

Deferimento

#9.1

01/10/1984

RPI 690

Exigência - art. 36 da LPI

#6.1

05/31/1983

RPI 658

Solicitação de exame técnico

#4.1

08/31/1982

RPI 619

Carta-patente expirada

#21.1

04/25/1995

RPI 1273

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