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Official data from INPI

PELÍCULA DE ENCOLHIMENTO DE CAMADAS MÚLTIPLAS

PublicadaInvention Patent

Application data

Number

PI8703126

Type

Invention Patent

Filing

06/22/1987

Publication

03/08/1988

Progress at the INPI

  1. Filing06/22/87
  2. Publication03/08/88
  3. Examination12/04/90
  4. Allowance12/20/94
  5. Grant07/25/95
  6. Expired07/29/08

The letters patent expired on 07/29/2008: 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: 03/08/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Cryovac , INC.

US

W.R. Grace & CO

US

W.R. Grace & CO-Conn

US

See this company's full portfolio

Inventors

T. O. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

880.257 · 06/30/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

03/08/1988

RPI 907

Pedido de patente depositado

#2.1

09/01/1987

RPI 880

Carta-patente expirada

#21.1

Patente extinta em 22/06/2002

07/29/2008

RPI 1960

Transferência deferida

#25.1

Transferido de W.R.Grace & Co.-Conn.

06/12/2001

RPI 1588

Concessão da patente

#16.1

07/25/1995

RPI 1286

Notificação para pagamento de retribuição

#13.1

05/02/1995

RPI 1274

Deferimento

#9.1

12/20/1994

RPI 1255

Exigência - art. 36 da LPI

#6.1

05/24/1994

RPI 1225

Exigência - art. 36 da LPI

#6.1

09/21/1993

RPI 1190

14.4

06/04/1991

RPI 1070

Solicitação de exame técnico

#4.1

12/04/1990

RPI 1044

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