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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8305358

Type

Invention Patent

Filing

09/29/1983

Publication

05/08/1984

Progress at the INPI

  1. Filing09/29/83
  2. Publication05/08/84
  3. Examination08/07/84
  4. Allowance07/08/86
  5. Grant03/17/87
  6. Terminated04/23/96

The patent was granted on 03/17/1987 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 03/17/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Townsend Engineering Company.

US

See this company's full portfolio

Inventors

T. T. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

03/17/1987

RPI 856

Notificação para pagamento de retribuição

#13.1

11/04/1986

RPI 837

Deferimento

#9.1

07/08/1986

RPI 820

Exigência - art. 36 da LPI

#6.1

12/31/1985

RPI 793

Solicitação de exame técnico

#4.1

08/07/1984

RPI 720

Publicação do pedido de patente

#3.1

05/08/1984

RPI 707

Pedido de patente depositado

#2.1

12/13/1983

RPI 686

Anuidade - prazo legal encerrado

#18.2

04/23/1996

RPI 1325

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