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Official data from INPI

DISPOSITIVO IDENTIFICADOR

PublicadaInvention Patent

Application data

Number

PI8700042

Type

Invention Patent

Filing

01/07/1987

Publication

12/01/1987

Progress at the INPI

  1. Filing01/07/87
  2. Publication12/01/87
  3. Examination06/26/90
  4. Allowance08/06/91
  5. Grant05/26/92
  6. Expired07/29/08

The letters patent expired on 07/29/2008: 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: 12/01/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

S. C. (pessoa física)

US

See this company's full portfolio

Inventors

D. N. (pessoa física)

US

G. P. (pessoa física)

US

R. S. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

824.507 · 01/31/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

12/01/1987

RPI 893

Pedido de patente depositado

#2.1

05/12/1987

RPI 864

Carta-patente expirada

#21.1

Patente extinta em 07/01/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

05/26/1992

RPI 1121

Notificação para pagamento de retribuição

#13.1

12/03/1991

RPI 1096

Deferimento

#9.1

08/06/1991

RPI 1079

Solicitação de exame técnico

#4.1

06/26/1990

RPI 1024

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