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Official data from INPI

PROCESSO PARA A PREPARACAO DE OLIGOURETANAS,OLIGOURETANAS E SEU EMPREGO

Em AnáliseInvention Patent

Application data

Number

PI7703748

Type

Invention Patent

Filing

06/11/1976

Publication

-

Progress at the INPI

  1. Filing06/11/76
  2. Publication
  3. Examination
  4. Allowance07/13/82
  5. Grant
  6. Terminated01/21/92

The patent was granted and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 03/29/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

BAYER AG

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Inventors

No inventors listed.

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

22.9

03/29/1983

RPI 649

Notificação para pagamento de retribuição

#13.1

11/30/1982

RPI 632

Deferimento

#9.1

07/13/1982

RPI 612

Exigência - art. 36 da LPI

#6.1

12/08/1981

RPI 581

Anuidade - prazo legal encerrado

#18.2

01/21/1992

RPI 1103

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