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Official data from INPI

JUNTA DE TUBO E ARRANJO DE JUNTA DE TUBO.

ConcedidaInvention Patent

Application data

Number

PI8400393

Type

Invention Patent

Filing

01/31/1984

Publication

02/12/1985

Progress at the INPI

  1. Filing01/31/84
  2. Publication02/12/85
  3. Examination06/04/85
  4. Allowance10/14/86
  5. Grant06/30/87
  6. Expired07/08/08

The letters patent expired on 07/08/2008: 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

Amsted Industries Incorporated

US

See this company's full portfolio

Inventors

R. P. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

471.290 · 03/02/1983

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

Exigência - art. 36 da LPI

#6.1

04/01/1986

RPI 806

Solicitação de exame técnico

#4.1

06/04/1985

RPI 763

Publicação do pedido de patente

#3.1

02/12/1985

RPI 747

Pedido de patente depositado

#2.1

04/10/1984

RPI 703

Carta-patente expirada

#21.1

Patente extinta em 31/01/99

07/08/2008

RPI 1957

Republicação - classificação IPC

#15.11

04/07/1992

RPI 1114

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