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Official data from INPI

GUIA PARA FAZER UM CORTE EM UMA FOLHA FLEXÍVEL E PROCESSO DE UNIÃO DE DUAS PARTES DE UM CARPETE OU MATERIAL DE FOLHA SIMILAR

Arquivada/ExtintaInvention PatentPCT · GB1988000805

Application data

Number

PI8807723

Type

Invention Patent

Filing

09/30/1988

Publication

07/24/1990

PCT

GB1988000805

Progress at the INPI

  1. Filing09/30/88
  2. Publication07/24/90
  3. Examination04/23/91
  4. Allowance04/19/94
  5. Grant11/29/94
  6. Expired09/02/08

The letters patent expired on 09/02/2008: 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: 09/02/2008. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Duralay Limited

GB

Inventors

J. W. (pessoa física)

GB

Technical data

IPC Classification

Priority claims

GB

8723224 · 10/02/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 30/09/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

11/29/1994

RPI 1252

Notificação para pagamento de retribuição

#13.1

08/16/1994

RPI 1237

Deferimento

#9.1

04/19/1994

RPI 1220

Solicitação de exame técnico

#4.1

04/23/1991

RPI 1064

Notificação de entrada na fase nacional - PCT

#1.3

07/24/1990

RPI 1025

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