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Official data from INPI

PROCESSO E APARELHO PARA A CONFORMACAO DAS EXTREMIDADES DE TUBO TERMO-PLASTICO FORMADO ESPIRALADAMENTE E PRODUTO RESULTANTE PELOS MESMOS

ConcedidaInvention Patent
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Application data

Number

PI8105016

Type

Invention Patent

Filing

08/05/1980

Publication

04/06/1982
View on INPI

Progress at the INPI

  1. Filing08/05/80
  2. Publication04/06/82
  3. Examination06/15/82
  4. Allowance06/09/87
  5. Grant11/24/87
  6. Terminated09/25/90

The patent was granted on 11/24/1987 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: 11/24/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

JOHNS MANVILLE [US]

Inventors

H. A. (pessoa física)

H. H. (pessoa física)

Technical data

IPC Classification

B21D 9/00B29C 53/78B29C 53/80B29C 69/00

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/24/1987

RPI 892

Notificação para pagamento de retribuição

#13.1

09/29/1987

RPI 884

Deferimento

#9.1

06/09/1987

RPI 868

Exigência - art. 36 da LPI

#6.1

10/29/1986

RPI 836

Exigência - art. 36 da LPI

#6.1

08/06/1985

RPI 772

Exigência - art. 36 da LPI

#6.1

02/20/1985

RPI 748

Republicação - classificação IPC

#15.11

01/08/1985

RPI 742

Exigência - art. 36 da LPI

#6.1

06/19/1984

RPI 713

Solicitação de exame técnico

#4.1

06/15/1982

RPI 608

Publicação do pedido de patente

#3.1

04/06/1982

RPI 598

Anuidade - prazo legal encerrado

#18.2

09/25/1990

RPI 1034

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