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Official data from INPI

FECHO CORREDIÇO

PublicadaInvention Patent

Application data

Number

PI8901625

Type

Invention Patent

Filing

04/03/1989

Publication

11/21/1989

Progress at the INPI

  1. Filing04/03/89
  2. Publication11/21/89
  3. Examination08/14/90
  4. Allowance06/07/94
  5. Grant12/27/94
  6. Expired12/15/09

The letters patent expired on 12/15/2009: 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: 11/21/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Y. C. (pessoa física)

JP

Y. K. (pessoa física)

JP

See this company's full portfolio

Inventors

M. H. (pessoa física)

JP

S. F. (pessoa física)

JP

Technical data

IPC Classification

Priority claims

JP

63-45499 · 04/04/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

11/21/1989

RPI 996

Carta-patente expirada

#21.1

Patente extinta em 03/04/2004

12/15/2009

RPI 2032

20.4

09/26/1995

RPI 1295

Concessão da patente

#16.1

12/27/1994

RPI 1256

Deferimento

#9.1

06/07/1994

RPI 1227

Solicitação de exame técnico

#4.1

08/14/1990

RPI 1028

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