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Official data from INPI

PROCESSO PARA PREPARAR ÁCIDO 1R-CIS-CARONALDEÍDICO

ConcedidaInvention Patent

Application data

Number

PI7805060

Type

Invention Patent

Filing

08/07/1978

Publication

-

Progress at the INPI

  1. Filing08/07/78
  2. Publication
  3. Examination
  4. Allowance07/12/83
  5. Grant12/27/83
  6. Expired12/14/93

The letters patent expired on 12/14/1993: 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: 12/27/1983. 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

S. R. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

823233 · 08/09/1977

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/27/1983

RPI 688

Notificação para pagamento de retribuição

#13.1

11/08/1983

RPI 681

Deferimento

#9.1

07/12/1983

RPI 664

Exigência - art. 36 da LPI

#6.1

10/26/1982

RPI 627

6.2

10/13/1981

RPI 573

Carta-patente expirada

#21.1

12/14/1993

RPI 1202

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