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Official data from INPI

COMPOSIÇÃO DE MOLDAGEM PARA ESPUMAS RÍGIDAS DE POLIURETANO

ConcedidaInvention Patent

Application data

Number

PI8200573

Type

Invention Patent

Filing

02/03/1982

Publication

12/07/1982

Progress at the INPI

  1. Filing02/03/82
  2. Publication12/07/82
  3. Examination04/19/83
  4. Allowance09/06/88
  5. Grant05/30/89
  6. Expired07/01/08

The letters patent expired on 07/01/2008: 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

CPC International Inc

US

See this company's full portfolio

Inventors

F. K. (pessoa física)

DE

H. K. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 31 06 246.6 · 02/20/1981

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

12/27/1988

RPI 949

Deferimento

#9.1

09/06/1988

RPI 933

Exigência - art. 36 da LPI

#6.1

09/29/1987

RPI 884

Conhecimento de parecer técnico

#7.1

04/16/1985

RPI 756

Solicitação de exame técnico

#4.1

04/19/1983

RPI 652

Publicação do pedido de patente

#3.1

12/07/1982

RPI 633

Pedido de patente depositado

#2.1

03/23/1982

RPI 596

Carta-patente expirada

#21.1

Patente extinta em 03/02/97

07/01/2008

RPI 1956

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