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Official data from INPI

PROCESSO PARA PREPARAÇÀO DOS ÉSTERES INSETICIDAS DO ÁLCOOL ALFA-CIANO-M-FENOLXIBENZÍLICO

Concessão AnuladaInvention Patent

Application data

Number

PI7907063

Type

Invention Patent

Filing

10/31/1979

Publication

-

Progress at the INPI

  1. Filing10/31/79
  2. Publication
  3. Examination08/17/82
  4. Allowance05/10/83
  5. Grant11/29/83
  6. Expired05/02/95

The letters patent expired on 05/02/1995: 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: 02/14/1984. 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

P. W. (pessoa física)

Technical data

IPC Classification

Priority claims

US

957.264 · 11/02/1978

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

16.3

02/14/1984

RPI 695

Concessão da patente

#16.1

11/29/1983

RPI 684

Notificação para pagamento de retribuição

#13.1

09/27/1983

RPI 675

Deferimento

#9.1

05/10/1983

RPI 655

Solicitação de exame técnico

#4.1

08/17/1982

RPI 617

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. As classificações IPC anteriores eram: C07C 121/75; A01N 37/34; C07C 67/00; C07C 253/00.

03/27/2018

RPI 2464

Carta-patente expirada

#21.1

05/02/1995

RPI 1274

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