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Official data from INPI

TEAR CIRCULAR.

ConcedidaInvention Patent

Application data

Number

PI8303275

Type

Invention Patent

Filing

06/20/1983

Publication

02/07/1984

Progress at the INPI

  1. Filing06/20/83
  2. Publication02/07/84
  3. Examination05/13/86
  4. Allowance09/06/88
  5. Grant07/25/89
  6. Expired07/01/08

The letters patent expired on 07/01/2008: 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: 07/25/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

F. H. (pessoa física)

AT

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Inventors

H. [. (pessoa física)

Technical data

IPC Classification

Priority claims

CH

3 792/82 · 06/21/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/25/1989

RPI 979

Notificação para pagamento de retribuição

#13.1

12/27/1988

RPI 949

Deferimento

#9.1

09/06/1988

RPI 933

6.2

08/18/1987

RPI 878

Solicitação de exame técnico

#4.1

05/13/1986

RPI 812

Publicação do pedido de patente

#3.1

02/07/1984

RPI 694

Pedido de patente depositado

#2.1

08/02/1983

RPI 667

Carta-patente expirada

#21.1

Patente extinta em 20/06/98

07/01/2008

RPI 1956

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