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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8300406

Type

Invention Patent

Filing

01/27/1983

Publication

11/01/1983

Progress at the INPI

  1. Filing01/27/83
  2. Publication11/01/83
  3. Examination01/28/86
  4. Allowance06/23/87
  5. Grant11/24/87
  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: 11/24/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Jervis B. Webb International Company

US

See this company's full portfolio

Inventors

D. A. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/24/1987

RPI 892

Notificação para pagamento de retribuição

#13.1

10/20/1987

RPI 887

Deferimento

#9.1

06/23/1987

RPI 870

Exigência - art. 36 da LPI

#6.1

10/07/1986

RPI 833

Solicitação de exame técnico

#4.1

01/28/1986

RPI 797

Publicação do pedido de patente

#3.1

11/01/1983

RPI 680

Pedido de patente depositado

#2.1

03/15/1983

RPI 647

Carta-patente expirada

#21.1

Patente extinta em 27/01/98

07/01/2008

RPI 1956

18.8

11/06/1990

RPI 1040

Anuidade - prazo legal encerrado

#18.2

10/02/1990

RPI 1035

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