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Official data from INPI

VEDACAO APERFEICOADA PARA TANQUE CILINDRICO COM TETO FLUTUANTE E TIRA ELASTOMERICA COMPOSTA

ConcedidaInvention Patent

Application data

Number

PI7802673

Type

Invention Patent

Filing

09/26/1977

Publication

-

Progress at the INPI

  1. Filing09/26/77
  2. Publication
  3. Examination
  4. Allowance
  5. Grant03/29/83
  6. Terminated09/18/90

The patent was granted on 03/29/1983 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: 03/29/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

CHICAGO BRIDGE & IRON CO

Inventors

M. J. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

03/29/1983

RPI 649

Notificação para pagamento de retribuição

#13.1

01/11/1983

RPI 638

8.1

08/24/1982

RPI 618

Exigência - art. 36 da LPI

#6.1

12/29/1981

RPI 584

Anuidade - prazo legal encerrado

#18.2

09/18/1990

RPI 1033

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