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Official data from INPI

Processo para instalação in situ de um forro termoplástico em um tubo geralmente cilíndrico

PublicadaInvention Patent

Application data

Number

PI8803717

Type

Invention Patent

Filing

07/26/1988

Publication

02/14/1989

Progress at the INPI

  1. Filing07/26/88
  2. Publication02/14/89
  3. Examination12/26/90
  4. Allowance09/09/97
  5. Grant07/28/98
  6. Expired08/26/08

The letters patent expired on 08/26/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 02/14/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Pipe Liners,Inc

US

Inventors

L. F. (pessoa física)

FR

P. L. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

077.883 · 07/27/1987

US

114.949 · 10/30/1987

US

188.468 · 04/29/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

02/14/1989

RPI 956

Pedido de patente depositado

#2.1

12/27/1988

RPI 949

Carta-patente expirada

#21.1

Patente extinta em 28/07/2008

08/26/2008

RPI 1964

Concessão da patente

#16.1

Prazo de Validade (10) dez anos contados a partir de 28/07/1998, observadas as condições legais.

07/28/1998

RPI 1440

Deferimento

#9.1

09/09/1997

RPI 1397

Exigência - art. 36 da LPI

#6.1

11/19/1996

RPI 1355

Solicitação de exame técnico

#4.1

12/26/1990

RPI 1047

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