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Official data from INPI

DISPOSITIVO REGULADOR DE VAZÃO PARA IRRIGAÇÃO POR SULCOS, A PARTIR DE TUBO JANELADO

ConcedidaInvention Patent

Application data

Number

PI8500041

Type

Invention Patent

Filing

01/07/1985

Publication

08/19/1986

Progress at the INPI

  1. Filing01/07/85
  2. Publication08/19/86
  3. Examination10/21/86
  4. Allowance02/28/89
  5. Grant09/26/89
  6. Expired07/15/08

The letters patent expired on 07/15/2008: 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: 09/26/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Tubos e Conexões Tigre Ltda

SC, BR

See this company's full portfolio

Inventors

D. C. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/26/1989

RPI 988

Notificação para pagamento de retribuição

#13.1

07/11/1989

RPI 977

Deferimento

#9.1

02/28/1989

RPI 958

11.8

10/25/1988

RPI 940

Arquivamento - Art. 36 §1° da LPI

#11.2

08/30/1988

RPI 932

14.4

05/17/1988

RPI 917

Exigência - art. 36 da LPI

#6.1

08/18/1987

RPI 878

Solicitação de exame técnico

#4.1

10/21/1986

RPI 835

Publicação do pedido de patente

#3.1

08/19/1986

RPI 826

Pedido de patente depositado

#2.1

04/09/1985

RPI 755

Carta-patente expirada

#21.1

Patente extinta em 07/01/2000

07/15/2008

RPI 1958

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