Official data from INPI

METODO PARA REVESTIMENTO DE TUBOS

ConcedidaInvention Patent

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Application data

Number

PI7906538

Type

Invention Patent

Filing

10/10/1978

Publication

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Progress at the INPI

Filing10/10/78
Publication
Examination08/17/82
Allowance04/19/83
Grant11/29/83
Terminated01/28/92

The patent was granted on 11/29/1983 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: 11/29/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

KENDALL & CO

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Inventors

S. C. (pessoa física)

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/29/1983

RPI 684

Notificação para pagamento de retribuição

#13.1

09/06/1983

RPI 672

Deferimento

#9.1

04/19/1983

RPI 652

Solicitação de exame técnico

#4.1

08/17/1982

RPI 617

Anuidade - prazo legal encerrado

#18.2

01/28/1992

RPI 1104

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