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Official data from INPI

PROCESSO E DISPOSITIVO PARA A FABRICAÇÃO DE FITILHAS ESTIRADAS, DE CAMADA DUPLA

PublicadaInvention Patent

Application data

Number

PI8804717

Type

Invention Patent

Filing

09/13/1988

Publication

04/18/1989

Progress at the INPI

  1. Filing09/13/88
  2. Publication04/18/89
  3. Examination07/09/91
  4. Allowance11/01/94
  5. Grant06/27/95
  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: 04/18/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Windmoeller & Hoelscher

DE

See this company's full portfolio

Inventors

F. (pessoa física)

DE

K. L. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 37 30 825.4 · 09/14/1987

DE

P 37 42 915.9 · 12/17/1987

DE

P 38 15 603.2 · 05/06/1988

DE

P 38 21 404.0 · 06/24/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

04/18/1989

RPI 965

Pedido de patente depositado

#2.1

01/31/1989

RPI 954

Carta-patente expirada

#21.1

Patente extinta em 13/09/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

06/27/1995

RPI 1282

Notificação para pagamento de retribuição

#13.1

03/07/1995

RPI 1266

Deferimento

#9.1

11/01/1994

RPI 1248

Solicitação de exame técnico

#4.1

07/09/1991

RPI 1075

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