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Official data from INPI

MÉTODO DE CONSTRUÇÃO DE UM CONDUTO DE IRRIGAÇÃO E CONDUTO DE IRRIGAÇÃO

ConcedidaInvention Patent

Application data

Number

PI8204914

Type

Invention Patent

Filing

08/23/1982

Publication

04/03/1984

Progress at the INPI

  1. Filing08/23/82
  2. Publication04/03/84
  3. Examination05/20/86
  4. Allowance03/17/87
  5. Grant09/29/87
  6. Terminated06/26/90

The patent was granted on 09/29/1987 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 09/29/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

R. S. (pessoa física)

US

Inventors

J. L. (pessoa física)

US

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/29/1987

RPI 884

Notificação para pagamento de retribuição

#13.1

07/14/1987

RPI 873

Deferimento

#9.1

03/17/1987

RPI 856

Solicitação de exame técnico

#4.1

05/20/1986

RPI 813

Publicação do pedido de patente

#3.1

04/03/1984

RPI 702

Pedido de patente depositado

#2.1

10/13/1982

RPI 625

Anuidade - prazo legal encerrado

#18.2

06/26/1990

RPI 1024

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