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Official data from INPI

COPOLIMERO DE CLORETO DE VINILA INTERNAMENTE PLASTIFICADO

ConcedidaInvention Patent

Application data

Number

PI7800393

Type

Invention Patent

Filing

01/27/1977

Publication

-

Progress at the INPI

  1. Filing01/27/77
  2. Publication
  3. Examination
  4. Allowance11/16/82
  5. Grant07/26/83
  6. Expired07/20/93

The letters patent expired on 07/20/1993: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 07/26/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

STAUFFER CHEMICAL CO

See this company's full portfolio

Inventors

G. J. (pessoa física)

Q. R. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/26/1983

RPI 666

10.1

06/07/1983

RPI 659

Notificação para pagamento de retribuição

#13.1

03/22/1983

RPI 648

Deferimento

#9.1

11/16/1982

RPI 630

Exigência - art. 36 da LPI

#6.1

05/04/1982

RPI 602

Carta-patente expirada

#21.1

07/20/1993

RPI 1181

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