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Official data from INPI

ROLDANA.

ConcedidaInvention Patent

Application data

Number

PI8206139

Type

Invention Patent

Filing

10/21/1982

Publication

09/20/1983

Progress at the INPI

  1. Filing10/21/82
  2. Publication09/20/83
  3. Examination11/19/85
  4. Allowance10/14/86
  5. Grant06/30/87
  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: 06/30/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

W. C. (pessoa física)

US

See this company's full portfolio

Inventors

B. H. (pessoa física)

Technical data

IPC Classification

Priority claims

US

321.157 · 11/13/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/30/1987

RPI 871

Notificação para pagamento de retribuição

#13.1

03/10/1987

RPI 855

Deferimento

#9.1

10/14/1986

RPI 834

Solicitação de exame técnico

#4.1

11/19/1985

RPI 787

Publicação do pedido de patente

#3.1

09/20/1983

RPI 674

Pedido de patente depositado

#2.1

12/14/1982

RPI 634

Carta-patente expirada

#21.1

Patente extinta em 21/10/97

07/01/2008

RPI 1956

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