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Official data from INPI

ARTIGO OCO SANFONÁVEL, RECIPIENTE SANFONÁVEL E RECIPIENTE DE ACESSO CONTÍNUO À SUPERFÍCIE

PublicadaInvention Patent

Application data

Number

PI8703073

Type

Invention Patent

Filing

06/19/1987

Publication

05/24/1988

Progress at the INPI

  1. Filing06/19/87
  2. Publication05/24/88
  3. Examination11/13/90
  4. Allowance04/07/92
  5. Grant11/24/92
  6. Terminated10/17/95

The patent was granted on 11/24/1992 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: 05/24/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

W. T. (pessoa física)

US

Inventors

W. T. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

916.528 · 10/08/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

05/24/1988

RPI 918

Pedido de patente depositado

#2.1

09/01/1987

RPI 880

Anuidade - prazo legal encerrado

#18.2

10/17/1995

RPI 1298

Concessão da patente

#16.1

11/24/1992

RPI 1147

Notificação para pagamento de retribuição

#13.1

09/08/1992

RPI 1136

Deferimento

#9.1

04/07/1992

RPI 1114

Conhecimento de parecer técnico

#7.1

09/10/1991

RPI 1084

Solicitação de exame técnico

#4.1

11/13/1990

RPI 1041

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