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Official data from INPI

PROCESSO PARA A PREPARAÇÃO DE UM ELASTÔMERO DE COPOLÍMERO COM RESISTÊNCIA APE RFEIÇOADA AO CALOR E AOS ÓLEOS

ConcedidaInvention Patent

Application data

Number

PI8001273

Type

Invention Patent

Filing

03/04/1980

Publication

-

Progress at the INPI

  1. Filing03/04/80
  2. Publication
  3. Examination07/06/82
  4. Allowance04/24/84
  5. Grant10/30/84
  6. Expired05/16/95

The letters patent expired on 05/16/1995: 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: 10/30/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Uniroyal, Inc.

US

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Inventors

P. C. (pessoa física)

US

R. M. (pessoa física)

W. N. (pessoa física)

US

Y. R. (pessoa física)

US

Technical data

Priority claims

US

040.783 · 05/21/1979

US

17.297 · 03/05/1979

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

10/30/1984

RPI 732

15.15

09/18/1984

RPI 726

Notificação para pagamento de retribuição

#13.1

08/21/1984

RPI 722

Deferimento

#9.1

04/24/1984

RPI 705

Exigência - art. 36 da LPI

#6.1

11/01/1983

RPI 680

6.2

01/11/1983

RPI 638

Solicitação de exame técnico

#4.1

07/06/1982

RPI 611

Carta-patente expirada

#21.1

05/16/1995

RPI 1276

Pedido de licença compulsória

#20.1

02/26/1991

RPI 1056

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