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Official data from INPI

PROCESSO PARA PREPARAR POLIALQUILENOPOLIAMINAS LINEARMENTE ESTENDIDAS

Arquivada/ExtintaInvention PatentPCT · US1989004498

Application data

Number

PI8907121

Type

Invention Patent

Filing

10/12/1989

Publication

02/05/1991

PCT

US1989004498

Progress at the INPI

  1. Filing10/12/89
  2. Publication02/05/91
  3. Abandoned03/23/93
  4. Allowance
  5. Grant
  6. In force

The application was abandoned for failure to pay the annuities (art. 86 of the Brazilian IP Act). The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 03/21/2000. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The Dow Chemical Company

US

See this company's full portfolio

Inventors

B. G. (pessoa física)

H. E. (pessoa física)

M. C. (pessoa física)

Technical data

Priority claims

US

257.891 · 10/14/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento por falta de pagamento

#8.6

Referente a 8ª, 9ª, e 10ª anuidade

03/21/2000

RPI 1524

8.1

Referente a 8ª,9ª e 10ª anuidade

12/22/1998

RPI 1459

Solicitação de exame técnico

#4.1

03/23/1993

RPI 1164

Notificação de entrada na fase nacional - PCT

#1.3

02/05/1991

RPI 1053

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