(11) 98705-3426
TrademarkIQ iconTrademarkIQ
Back to search
Official data from INPI

PROCESSO PARA A PREPARAÇÃO DE UM SAL DE ÁCIDO BENZENO SULFÔNICO OU TOLUENO SULFÔNICO DE 2-CIANO- AZA-BICICLO-(3,1,0)-HEXANO.

Em AnáliseInvention Patent

Application data

Number

PI7906139

Type

Invention Patent

Filing

09/25/1979

Publication

-

Progress at the INPI

  1. Filing09/25/79
  2. Publication
  3. Examination06/15/82
  4. Allowance03/01/83
  5. Grant10/18/83
  6. Terminated06/14/88

The patent was granted on 10/18/1983 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 06/14/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Shell Internationale Research Maatschappij B.V

NL

See this company's full portfolio

Inventors

M. R. (pessoa física)

W. D. (pessoa física)

Technical data

IPC Classification

No IPC classification.

Priority claims

GB

38331/78 · 09/27/1978

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

06/14/1988

RPI 921

Concessão da patente

#16.1

10/18/1983

RPI 678

Notificação para pagamento de retribuição

#13.1

06/21/1983

RPI 661

Deferimento

#9.1

03/01/1983

RPI 645

Republicação - classificação IPC

#15.11

02/22/1983

RPI 644

Solicitação de exame técnico

#4.1

06/15/1982

RPI 608

Patent monitoring

Track this patent in real time.

Receive alerts on INPI events, decisions, and expiry dates for your portfolio.