Official data from INPI

SEM TITULO

ConcedidaInvention Patent

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Application data

Number

PI8106488

Type

Invention Patent

Filing

01/30/1981

Publication

12/29/1981

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Progress at the INPI

Filing01/30/81
Publication12/29/81
Examination10/04/83
Allowance06/12/84
Grant12/26/84
Terminated03/19/96

The patent was granted on 12/26/1984 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 12/26/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

W. C. (pessoa física)

Inventors

W. P. (pessoa física)

Technical data

IPC Classification

C03B 37/085 C03B 37/09 C03B 5/43 C22B 9/18 F27B 14/04 F27B 14/06 F27B 3/08 F27B 3/10 F27B 3/14

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/26/1984

RPI 740

Notificação para pagamento de retribuição

#13.1

10/02/1984

RPI 728

Deferimento

#9.1

06/12/1984

RPI 712

Solicitação de exame técnico

#4.1

10/04/1983

RPI 676

Notificação de entrada na fase nacional - PCT

#1.3

12/29/1981

RPI 584

Anuidade - prazo legal encerrado

#18.2

03/19/1996

RPI 1320

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