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Official data from INPI

PROCESSO PARA LIGAR SUBSTRATOS IMPERMEAVEIS AO AR COMPOSICAO DE CURA ANAEROBICA E ARTIGO COMPOSTO

ConcedidaInvention Patent

Application data

Number

PI8107045

Type

Invention Patent

Filing

10/30/1981

Publication

07/20/1982

Progress at the INPI

  1. Filing10/30/81
  2. Publication07/20/82
  3. Examination08/28/84
  4. Allowance07/19/88
  5. Grant02/28/89
  6. Terminated09/20/94

The patent was granted on 02/28/1989 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: 02/28/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Minnesota Mining and Manufacturing Company

US

See this company's full portfolio

Inventors

J. W. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

02/28/1989

RPI 958

Notificação para pagamento de retribuição

#13.1

11/16/1988

RPI 943

Deferimento

#9.1

07/19/1988

RPI 926

Exigência - art. 36 da LPI

#6.1

09/29/1987

RPI 884

Conhecimento de parecer técnico

#7.1

04/02/1985

RPI 754

Solicitação de exame técnico

#4.1

08/28/1984

RPI 723

Publicação do pedido de patente

#3.1

07/20/1982

RPI 613

Pedido de patente depositado

#2.1

12/15/1981

RPI 582

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. As classificações IPC anteriores eram: C09J 3/14; C08F 120/10.

03/27/2018

RPI 2464

Anuidade - prazo legal encerrado

#18.2

09/20/1994

RPI 1242

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