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Official data from INPI

PEÇA DE VÁLVULA.

Em AnáliseInvention Patent

Application data

Number

PI8604389

Type

Invention Patent

Filing

09/12/1986

Publication

05/12/1987

Progress at the INPI

  1. Filing09/12/86
  2. Publication05/12/87
  3. Examination11/21/89
  4. Allowance05/29/90
  5. Grant12/26/90
  6. Expired07/22/08

The letters patent expired on 07/22/2008: 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: 11/21/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Coxwold (Proprietary) Limited

ZA

Sweepy International S.A.

NL

Inventors

D. K. (pessoa física)

ZA

Technical data

IPC Classification

Priority claims

ZA

85/6987 · 09/12/1985

ZA

86/2461 · 04/03/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

11/21/1989

RPI 996

14.1

12/06/1988

RPI 946

14.1

07/26/1988

RPI 927

Publicação do pedido de patente

#3.1

05/12/1987

RPI 864

Pedido de patente depositado

#2.1

03/24/1987

RPI 857

Carta-patente expirada

#21.1

Patente extinta em 12/09/2001

07/22/2008

RPI 1959

Transferência deferida

#25.1

Transferido de: Zarina Holding C.V.

11/17/1998

RPI 1454

Transferência deferida

#25.1

11/11/1997

RPI 1406

Pedido de licença compulsória

#20.1

12/10/1991

RPI 1097

Republicação - classificação IPC

#15.11

05/07/1991

RPI 1066

Concessão da patente

#16.1

12/26/1990

RPI 1047

Notificação para pagamento de retribuição

#13.1

09/04/1990

RPI 1031

Deferimento

#9.1

05/29/1990

RPI 1020

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