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Official data from INPI

DISPOSITIVO PARA A FABRICAÇÃO DE UM TUBO PLÁSTICO DE PAREDES DUPLAS

Em AnáliseInvention Patent

Application data

Number

PI8601635

Type

Invention Patent

Filing

04/10/1986

Publication

12/16/1986

Progress at the INPI

  1. Filing04/10/86
  2. Publication12/16/86
  3. Examination01/24/89
  4. Allowance11/24/92
  5. Grant05/25/93
  6. Terminated09/26/95

The patent was granted on 05/25/1993 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: 07/18/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Armco, Inc.

US

R. D. (pessoa física)

DE

See this company's full portfolio

Inventors

H. D. (pessoa física)

Technical data

IPC Classification

Priority claims

DE

P 35 13 708.9 · 04/12/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de certificado de adição de invenção

#5.1

07/18/1989

RPI 978

Solicitação de exame técnico

#4.1

01/24/1989

RPI 953

Publicação do pedido de patente

#3.1

12/16/1986

RPI 843

Pedido de patente depositado

#2.1

10/29/1986

RPI 836

Anuidade - prazo legal encerrado

#18.2

09/26/1995

RPI 1295

Concessão da patente

#16.1

05/25/1993

RPI 1173

Notificação para pagamento de retribuição

#13.1

04/13/1993

RPI 1167

Deferimento

#9.1

11/24/1992

RPI 1147

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