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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8207853

Type

Invention Patent

Filing

09/08/1982

Publication

08/30/1983

Progress at the INPI

  1. Filing09/08/82
  2. Publication08/30/83
  3. Examination04/23/85
  4. Allowance12/08/87
  5. Grant06/28/88
  6. Terminated07/18/95

The patent was granted on 06/28/1988 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 06/28/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Minnesota Mining and Manufacturing Company

US

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Inventors

B. [. (pessoa física)

C. [. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/28/1988

RPI 923

Deferimento

#9.1

12/08/1987

RPI 894

Exigência - art. 36 da LPI

#6.1

06/10/1986

RPI 816

Exigência - art. 36 da LPI

#6.1

10/22/1985

RPI 783

Solicitação de exame técnico

#4.1

04/23/1985

RPI 757

Notificação de entrada na fase nacional - PCT

#1.3

08/30/1983

RPI 671

Anuidade - prazo legal encerrado

#18.2

07/18/1995

RPI 1285

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