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Official data from INPI

PROCESSO E APARELHO PARA RECUPERACAO DE VAPORES

ConcedidaInvention Patent

Application data

Number

PI8207748

Type

Invention Patent

Filing

06/15/1981

Publication

05/10/1983

Progress at the INPI

  1. Filing06/15/81
  2. Publication05/10/83
  3. Examination03/19/85
  4. Allowance10/04/88
  5. Grant05/30/89
  6. Expired08/19/08

The letters patent expired on 08/19/2008: 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: 05/30/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

MINNESOTA MINING & MFG [US]

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Inventors

F. [. (pessoa física)

F. [. (pessoa física)

W. [. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

05/30/1989

RPI 971

Notificação para pagamento de retribuição

#13.1

01/24/1989

RPI 953

Deferimento

#9.1

10/04/1988

RPI 937

15.5

12/17/1985

RPI 791

Exigência - art. 36 da LPI

#6.1

11/12/1985

RPI 786

Solicitação de exame técnico

#4.1

03/19/1985

RPI 752

Notificação de entrada na fase nacional - PCT

#1.3

05/10/1983

RPI 655

Carta-patente expirada

#21.1

Patente extinta em 17/05/97

08/19/2008

RPI 1963

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