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Official data from INPI

SEM TITULO

Em AnáliseInvention Patent

Application data

Number

PI8104702

Type

Invention Patent

Filing

07/21/1981

Publication

04/06/1982

Progress at the INPI

  1. Filing07/21/81
  2. Publication04/06/82
  3. Examination08/02/83
  4. Allowance02/14/84
  5. Grant04/29/86
  6. Expired11/12/96

The letters patent expired on 11/12/1996: 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: 10/03/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

G. C. (pessoa física)

US

Inventors

S. R. (pessoa física)

T. T. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

10/03/1989

RPI 989

Concessão da patente

#16.1

04/29/1986

RPI 810

Notificação para pagamento de retribuição

#13.1

09/17/1985

RPI 778

110

07/02/1985

RPI 767

120

11/20/1984

RPI 735

Recurso

#12.1

05/22/1984

RPI 709

Deferimento

#9.1

02/14/1984

RPI 695

Solicitação de exame técnico

#4.1

08/02/1983

RPI 667

Publicação do pedido de patente

#3.1

04/06/1982

RPI 598

Carta-patente expirada

#21.1

11/12/1996

RPI 1354

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